pH and buffers by Izyanti Ibrahim https://padlet.com/izzy10/pHnbuffers Explain what is 1) pH, 2) pKa and 3) pI en-us 2019-03-11 07:42:52 UTC 2023-06-04 13:16:45 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Apple.png Sivaraman Rajamanickam a171920 https://padlet.com/izzy10/pHnbuffers/wish/339830486 pH is a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid and higher values more alkaline. The pH is equal to −log10c, where c is the hydrogen ion concentration in moles per litre.

pKa is the negative log of the acid dissociation constant or Ka value. A lower pKa value indicates a stronger acid. That is, the lower value indicates the acid more fully dissociates in water.

pl or the isoelectric point (pI, pH(I), IEP), is the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statistical mean.]]> 2019-03-11 07:59:28 UTC https://padlet.com/izzy10/pHnbuffers/wish/339830486 LIM WAN XUAN A170262 https://padlet.com/izzy10/pHnbuffers/wish/339838490 pH is a scale that used to specify the acidity or basicity of an aqueous solution.The pH of the solution that less than 7 is  acidic , the pH of the solution that above 7 is basic.Pure water is pH 7.

pKa used to describe the strength of acid.It is the negative base-10 logarithm of the acid dissociation constant of a solution.The lower the pKa value, the stronger the acid.

pI is the isoelectric point,the pH at which the amino acid does not migrate in an electric field, pH at which the amino acid is neutral .]]> 2019-03-11 08:30:10 UTC https://padlet.com/izzy10/pHnbuffers/wish/339838490 Nurhusnina Syazwani binti Mohd Ariff (A170308) https://padlet.com/izzy10/pHnbuffers/wish/339838692 - pH is a measure of hydrogen ion concentration of a solution. Solution with high concentration of hydrogen ions have a low pH and solutions with low concentration of H+ ion have high pH. Solutions with a pH below 7 are termed acidic while solutions with pH above 7 are termed basic. Neutral at pH 7.


- pKa is a method used to indicate strength of an acid. pKa is the negative log of acid dissociation  constant. Lower pKa value indicates a stronger acid. The lower value indicates the acid more dissociate fully in water.


- pl is the pH at which amino acid does not migrate in an electric field.
]]> 2019-03-11 08:30:52 UTC https://padlet.com/izzy10/pHnbuffers/wish/339838692 CHEAH AI LING (A169324 a169324 https://padlet.com/izzy10/pHnbuffers/wish/339877646 1. pH is a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acidic and higher values are more alkaline.
2. pKa is a quantitative measure of the strength of an acid in a solution.
3. pI is the isoelectric point which a particular molecule carries no net electron charge or is electrically neutral in the static me]]> 2019-03-11 10:58:11 UTC https://padlet.com/izzy10/pHnbuffers/wish/339877646 Hong Zi Mian (A168755) pH = -log[H+] pH is a measure of hydrogen ion concentration, a measure of the acidity or alkalinity of a solution. The pH scale usually ranges from 0 to 14. Aqueous solutions at 25°C with a pH less than 7 are acidic, while those with a pH greater than 7 are basic or alkaline. A pH level of 7.0 at 25°C is defined as "neutral" because the concentration of H3O+ equals the concentration of OH− in pure water. pKa = -logKa The pKa measures the "strength" of a Bronsted acid. A strong Bronsted acid is a compound that gives up its proton very easily. A weak Bronsted acid is one that gives up its proton with more difficulty. pI—called the “isoelectric point,” this is the pH at which a molecule has a net neutral charge. Also, the pI is the point where the protein is least soluble in water (because it has no net charge); this can help determine which proteins are more soluble than others. https://padlet.com/izzy10/pHnbuffers/wish/339880657 2019-03-11 11:11:02 UTC https://padlet.com/izzy10/pHnbuffers/wish/339880657 Nur Awatif Binti Azmi A169261 1. pH is a measure of the hydrogen ion concentration of a solution. Solutions with a high concentration of hydrogen ion have a low pH and solutions with a low concentrations of H+ ions have a high pH. pH = -log[H+] 2. pKa used to describe the strength of acid.It is the negative base-10 logarithm of the acid dissociation constant of a solution.The lower the pKa value, the stronger the acid. 3. The isoelectronic point or isotonic point is the pH at which the amino acid does not migrate in an electric field, pH at which the amino acid is neutral. https://padlet.com/izzy10/pHnbuffers/wish/339900653 2019-03-11 12:13:10 UTC https://padlet.com/izzy10/pHnbuffers/wish/339900653 https://padlet.com/izzy10/pHnbuffers/wish/339901167 2019-03-11 12:14:27 UTC https://padlet.com/izzy10/pHnbuffers/wish/339901167 Nur Mashitah binti Mohd Shahrom A https://padlet.com/izzy10/pHnbuffers/wish/339901568 pH

 A measure of the degree to which a solution is acidic or alkaline

pKa

The negative decadic logarithm of the ionization constant (Ka) of an acid; equal to the pH value at which equalconcentrations of the acid and conjugate base forms of a substance (often a buffer) are present. 

pI

pI is the isoelectric point,the pH at which the amino acid does not migrate in an
electric field, pH at which the amino acid is neutral .

]]> 2019-03-11 12:15:25 UTC https://padlet.com/izzy10/pHnbuffers/wish/339901568 Nur Mashi https://padlet.com/izzy10/pHnbuffers/wish/339901572 2019-03-11 12:15:26 UTC https://padlet.com/izzy10/pHnbuffers/wish/339901572 Nurmin Nadiah binti Sabri A16 https://padlet.com/izzy10/pHnbuffers/wish/339901954 1) pH is a measure of the hydrogen ion concentration of a solution.
2) pKa is a  method used to indicate the strength of an acid.
3) pI is the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statistical mean]]> 2019-03-11 12:16:23 UTC https://padlet.com/izzy10/pHnbuffers/wish/339901954 S https://padlet.com/izzy10/pHnbuffers/wish/339923888 2019-03-11 13:01:54 UTC https://padlet.com/izzy10/pHnbuffers/wish/339923888 Sharifah Nawirah binti Syed Abu Bakar (A170612) https://padlet.com/izzy10/pHnbuffers/wish/339925475 1)      pH is a measure of the hydrogen ion concentration of a solution.
2)      pKa is the negative log of the acid dissociation constant or Ka value.
3)      Pl is the isoelectronic point or isoionic point is the pH at which the amino acid does not migrate in an electric field.


]]> 2019-03-11 13:04:41 UTC https://padlet.com/izzy10/pHnbuffers/wish/339925475 Siti Nur Aishah bt Muhamat Kamal (A169867) 1) pH = a measure of the concentration of hydrogen ions in an aqueous solution. 2)pKa = indicates the pH needs to be in order for a chemical species to donate or accept a proton. 3) pl = called the “isoelectric point,” this is the pH at which a molecule has a net neutral charge. https://padlet.com/izzy10/pHnbuffers/wish/339940181 2019-03-11 13:30:16 UTC https://padlet.com/izzy10/pHnbuffers/wish/339940181 https://padlet.com/izzy10/pHnbuffers/wish/339958412 pH -a figure expressing the acidity or alkalinity of a solution
pKa - Dissociation constant
pl - isoelectric point]]> 2019-03-11 14:02:44 UTC https://padlet.com/izzy10/pHnbuffers/wish/339958412 https://padlet.com/izzy10/pHnbuffers/wish/339959537 2019-03-11 14:04:42 UTC https://padlet.com/izzy10/pHnbuffers/wish/339959537 LIM SHI NING A170421 https://padlet.com/izzy10/pHnbuffers/wish/339970911 1)pH is a measure of the hydorgen ion concentration of a solution.It is a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid and higher values more alkaline.

2)pKa is the negative log of the acid dissociation constant or Ka value.It is used to indicate the strength of an acid.A lower pKa value indicates a stronger acid more fully dissociates in water.

3)pI is the isoelectric point which is the pH at which a molecule has a net neutral charge. pI is also the point where the protein is least soluble in water as protein has no net charge.This can help to determine which proteins are more soluble than others.]]> 2019-03-11 14:23:40 UTC https://padlet.com/izzy10/pHnbuffers/wish/339970911 Lokkhesh A/L Ramadass A167547 https://padlet.com/izzy10/pHnbuffers/wish/340009482 1. pH is the measurement of the concentration of hydrogen ions in that is based on a scale where 7 is neutral, below 7 the acidity increases and above 7 the alkali increases.
2. pKa  is used to measure the strength of an acid where pKa is the negative log of the acid dissociation also called as the Ka value. The lower the pKa value shows that the acid is stronger while a higher pKa value shows that the acid is weaker.
3. pl can be used to determine the solubility of proteins as it is the isoelectric point where the pH of a molecule has a net neutral charge. pl is also the point where the protein is least soluble in water as protein has no net charge.]]> 2019-03-11 15:25:01 UTC https://padlet.com/izzy10/pHnbuffers/wish/340009482 Nadia Hannah bt Zainuddin A167516 https://padlet.com/izzy10/pHnbuffers/wish/340017695 1) pH
pH is a measure of the hydrogen ion concentration of a solution. Solution with a high concentration of hydrogen ions have low pH whereas low concentration have a high pH.
2) pKa
pKa is a method to determine the strength of an acid. pKa is a negative log of the acid dissociation constant or Ka value. The lower value of pKa the stronger the acid.
3) pl
pl is the isoelectronic point, the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statiscal mean.]]> 2019-03-11 15:39:21 UTC https://padlet.com/izzy10/pHnbuffers/wish/340017695 Ong Jia Ler A169698 https://padlet.com/izzy10/pHnbuffers/wish/340020880 1. pH is the measure of the hydrogen ion concentration of a solution. It is a figure expressing the acidity or alkalinity of a solution based on a scale which 7 is neutral, lower values are acid and higher values are alkaline. 
2. pKa is the negative log of the acid dissociation constant or Ka value. It is used to determine the strength of acid. Lower value of pKa indicates the acid more fully dissociates in water. 
3. pI is the isoelectric point which is the pH at which a molecule has a net neutral change. It can be used to determine which proteins are more soluble. ]]> 2019-03-11 15:44:34 UTC https://padlet.com/izzy10/pHnbuffers/wish/340020880 Kogillavani A/P Mathivannan A168976 https://padlet.com/izzy10/pHnbuffers/wish/340028092 pH—the measure of acidity. It’s the negative logarithm of the proton concentration.

pKa—an association constant. It’s the negative logarithm of the ratio of dissociated acid and conjugated base, over the concentration of the associated chemical.

pI—called the “isoelectric point,” this is the pH at which a molecule has a net neutral charge.

]]> 2019-03-11 15:57:10 UTC https://padlet.com/izzy10/pHnbuffers/wish/340028092 NIK DIAA NASUHA BT MOHD FADISHAM A170577 https://padlet.com/izzy10/pHnbuffers/wish/340103295 1) pH - a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid and higher values more alkaline. 2) pKa - The pKa value is one method used to indicate the strength of an acid. pKa is the negative log of the acid dissociation constant or Ka value. A lower pKavalue indicates a stronger acid. That is, the lower value indicates the acid more fully dissociates in water. 3) pI - It is an isoelectronic, there is molecule that has a net neutral charge.]]> 2019-03-11 18:10:21 UTC https://padlet.com/izzy10/pHnbuffers/wish/340103295 A171760 https://padlet.com/izzy10/pHnbuffers/wish/340155467 1. pH
pH is a measure of the hydorgen ion concentration of a solution. Solutions with a high concentration of hydrogen ions have a low pH and solutions with a low concentration of H+ ions have a high pH.
 
2. pKa 
pKa value is one method used to indicate the strength of an acid. pKa is the negative log of the acid dissociation constant or Ka value. A lower pKa value indicates a stronger acid. That is, the lower value indicates the acid more fully dissociates in water.
 
3. pl
pl is  the pH at which a molecule has a net neutral charge. It is called the “isoelectric point,”
]]> 2019-03-11 20:11:26 UTC https://padlet.com/izzy10/pHnbuffers/wish/340155467 A170467 CHIN PEI VOON https://padlet.com/izzy10/pHnbuffers/wish/340241758 1. pH is the measure of hydrogen ion concentration, a measure of acidity or alkalinity of a solution.

2. pKa is the negative log of the acid dissociation constant (Ka ) of a solution. The pKa value is one method used to indicate the strength of an acid. A lower pKa value indicates a stronger acid and indicates the acid more fully dissociates in water.

3. pI (isoelectric point) is the pH at which the amino acid does not migrate in an electric field (the molecule carries no electrical charge). 
]]> 2019-03-12 03:19:31 UTC https://padlet.com/izzy10/pHnbuffers/wish/340241758 ALISHA NUR EMYLIA BALQIS BT ABDUL RAHMAN (A170 https://padlet.com/izzy10/pHnbuffers/wish/340253020 1. pH is a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid and higher values more alkaline. The pH is equal to −log10 c, where c is the hydrogen ion concentration in moles per litre.

2. The pKa value is one method used to indicate the strength of an acid. pKa is the negative log of the acid dissociation constant or Ka value. A lower pKa value indicates a stronger acid. That is, the lower value indicates the acid more fully dissociates in water.

3.  pl is the isoelectronic point or isoionic point is the pH at which the amino acid does not migrate in an electric field. This means it is the pH at which the amino acid is neutral. The pI is given by the average of the pKas that involve the zwitterion, i.e. that give the boundaries to its existence.]]> 2019-03-12 04:43:52 UTC https://padlet.com/izzy10/pHnbuffers/wish/340253020 A169433 1. pH is a measure of the hydorgen ion concentration of a solution. Solutions with a high concentration of hydrogen ions have a low pH and solutions with a low concentrations of H+ ions have a high pH. 2. pKa is acid dissociation constant. The lower the pKa value, the stronger the strength of acid, the higher the stability of conjugate bases. 3. pI stand for isoelectric point. Isoelectric point is the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statistical mean. https://padlet.com/izzy10/pHnbuffers/wish/340377838 2019-03-12 12:51:47 UTC https://padlet.com/izzy10/pHnbuffers/wish/340377838 Nur Izzah binti Ali Akbar A170432 https://padlet.com/izzy10/pHnbuffers/wish/340400481 1.pH is a measure of hydrogen ion concentration of a solution. It measures acidity or alkalinity of water soluble substances. 

2.pKa is a method used to indicate the strength of an acid

3.pI is known as the isoelectric point where the pH at which the total net charge of an amphoteric molecule becomes zero.

 

]]> 2019-03-12 13:32:49 UTC https://padlet.com/izzy10/pHnbuffers/wish/340400481 ASMA' AFIFAH BINTI MOHD SOBRI A171709 https://padlet.com/izzy10/pHnbuffers/wish/340421883 1. pH
A figure of expressing the acidity and alkalinity of a solution on a logarithmic scale on which 7 is a neutral, below 7 are acidic value and higher than 7 is alkaline value.  The hydrogen ion in pH is concentration in miles per litre.

2. pKa
pKa is a value of one method to indicate the strength of an acid. pKa is the negative log of the acid dissociation constant or Ka value. the lower the pKa, the stronger the acid. conclusion is that the lower value indicates the acid has more and fully dissociates in water.

3. pI
pI is stand for isoelectric point. which is the pH at which a particular molecule carries no net electric charges or is electrically neutral in the statistical mean.

]]> 2019-03-12 14:09:42 UTC https://padlet.com/izzy10/pHnbuffers/wish/340421883 FATIN ADILA NISYA BT ABDUL HALIM (A170727) a170727 https://padlet.com/izzy10/pHnbuffers/wish/340460396 1) pH is a measure of the hydorgen ion concentration of a solution. Solutions with a high concentration of hydrogen ions have a low pH and solutions with a low concentrations of H+ ions have a high pH.

2) pKa value is one method used to indicate the strength of an acid. A lower pKa value indicates a stronger acid.

3) pl is the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statistical mean.



]]> 2019-03-12 15:11:11 UTC https://padlet.com/izzy10/pHnbuffers/wish/340460396 FATIN NURLIYANA BINTI ASRIN (A169679) https://padlet.com/izzy10/pHnbuffers/wish/340462573 pH is a measure of the hydorgen ion concentration of a solution used to specify the acidity or basicity of an aqueous solution.

pKa is the negative base-10 logarithm of the acid dissociation constant (Ka) of a solution.The reason pKa is used is because it describes acid dissociation using small decimal numbers.

pl is the isoelectronic point or isoionic point which is the pH at which the amino acid does not migrate in an electric field.]]> 2019-03-12 15:14:52 UTC https://padlet.com/izzy10/pHnbuffers/wish/340462573 Au Shu En(A170070) https://padlet.com/izzy10/pHnbuffers/wish/340498058


]]> 2019-03-12 16:13:12 UTC https://padlet.com/izzy10/pHnbuffers/wish/340498058 Au Shu En(A170070) https://padlet.com/izzy10/pHnbuffers/wish/340505218 Au Shu En
1)pH:a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral,lower values are more acid and higher values more alkaline.
 2)pKa:is the negative log of the acid association constant or Ka value.A lower pKa value indicates a stronger acid.
 3)pI:isolectric point,that is the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statistical mean.
]]> 2019-03-12 16:25:08 UTC https://padlet.com/izzy10/pHnbuffers/wish/340505218 Au Shu En(A170070) https://padlet.com/izzy10/pHnbuffers/wish/340505221
1)pH:a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral,lower values are more acid and higher values more alkaline.
 2)pKa:is the negative log of the acid association constant or Ka value.A lower pKa value indicates a stronger acid.
 3)pI:isolectric point,that is the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statistical mean.

]]> 2019-03-12 16:25:09 UTC https://padlet.com/izzy10/pHnbuffers/wish/340505221 ARISHA SYAQUERA BASHAH BINTI MOHD ZALFA A170654 1) pH is a measure of the hydorgen ion concentration of a solution. Solutions with a high concentration of hydrogen ions have a low pH and solutions with a low concentrations of H+ ions have a high pH. 2) The pKa value is one method used to indicate the strength of an acid. pKa is the negative log of the acid dissociation constant or Ka value. A lower pKa value indicates a stronger acid. That is, the lower value indicates the acid more fully dissociates in water https://padlet.com/izzy10/pHnbuffers/wish/340506442 3) pI (isoelectric point) is the pH at which the amino acid does not migrate in an electric field (the molecule carries no electrical charge). ]]> 2019-03-12 16:27:05 UTC https://padlet.com/izzy10/pHnbuffers/wish/340506442 https://padlet.com/izzy10/pHnbuffers/wish/340525348 Norfaizah Binti Mohamad Kudus 
A169565
pH: a measure of the hydrogen ion concentration of a solution. Solution with a high concentration of hydrogen ions have a low pH and solution with a low concentration of hydrogen ion have a high pH.
pKa: The negative base-10 logarithm of the acid dissociation constant of a solution. The lower the pKa value, the stronger the acid.
pI: isoelectric point - pH at which a particular molecule carries not net electrical change or is electrically neutral in thr statistical mean.]]> 2019-03-12 16:59:27 UTC https://padlet.com/izzy10/pHnbuffers/wish/340525348 Nur Syuhadah binti Azari A167526 syuhadahazari18 https://padlet.com/izzy10/pHnbuffers/wish/340664036 1. pH is a measure of the hydrogen ion concentration of a solution. Solution with a high concentration of hydrogen ions have a low pH and solution with a low concentration of hydrogen ion have a high pH.
 2. pKa value is amethod used to indicate the strength of an acid. A lower pKa value indicates a stronger acid. The lower the pKa value, the stronger the acid.
 3. pI (isoelectric point) is the pH at which the amino acid does not migrate in an electric field. The molecule carries no electrical charge or electrically neutral.]]> 2019-03-12 23:43:37 UTC https://padlet.com/izzy10/pHnbuffers/wish/340664036 NAIMAH KHAIRUL ANWAR A1701 https://padlet.com/izzy10/pHnbuffers/wish/340666312 1) In chemistry, pH is a logarithmic scale used to specify the acidity or basicity of an aqueous solution.
2) pKa is defined as the negative log10 of the dissociation constant of an acid, its Ka. Therefore, the pKa is a quantitative measure of how easily or how readily the acid gives up its proton [H+] in solution and thus a measure of the "strength" of the acid. Strong acids have a small pKa, weak acids have a larger pKa.
3)pI ( isoelectric point) is the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statistical mean. The standard nomenclature to represent the isoelectric point is pH(I), although pI is also commonly seen, and is used in this article for brevity.
]]> 2019-03-12 23:58:19 UTC https://padlet.com/izzy10/pHnbuffers/wish/340666312 1) In chemistry, pH is a logarithmic scale used to specify the acidity or basicity of an aqueous solution. 2) pKa is defined as the negative log10 of the dissociation constant of an acid, its Ka. Therefore, the pKa is a quantitative measure of how easily or how readily the acid gives up its proton [H+] in solution and thus a measure of the "strength" of the acid. Strong acids have a small pKa, weak acids have a larger pKa. 3)pI ( isoelectric point) is the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statistical mean. The standard nomenclature to represent the isoelectric point is pH(I), although pI is also commonly seen, and is used in this article for brevity. https://padlet.com/izzy10/pHnbuffers/wish/340667563 2019-03-13 00:07:07 UTC https://padlet.com/izzy10/pHnbuffers/wish/340667563 KOH YUN SHI A170029 https://padlet.com/izzy10/pHnbuffers/wish/340779293 1. pH
  • A measure of the acidity or alkalinity of a fluid
  • The pH of any fluid is the measure of its hydrogen ion (H+) concentration relative to that of a given standard solution
  • The pH may range from 0 to 14, where 0 is most acid, 14 most basic, and 7 is neutral

2. pKa
  • The negative log of the acid dissociation constant or Ka value
  • A lower pKa value indicates a stronger acid where the lower value indicates the acid more fully dissociates in water

3. pl
  • The pH of an aqueous solution of an amino acid (or peptide) at which the molecules on average have no net charge
  • In other words, the positively charged groups are exactly balanced by the negatively charged groups

]]> 2019-03-13 10:04:05 UTC https://padlet.com/izzy10/pHnbuffers/wish/340779293 Nik Yasmin Umaira Binti Hasnizan. A170138. 1) pH is a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid and higher values more alkaline. 2)The pKa value is one method used to indicate the strength of an acid. pKa is the negative log of the acid dissociation constant or Ka value. A lower pKa value indicates a stronger acid. 3)pI is the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statistical mean. a170138 https://padlet.com/izzy10/pHnbuffers/wish/341177966 2019-03-14 05:38:17 UTC https://padlet.com/izzy10/pHnbuffers/wish/341177966 Nor Fatini Binti Rahim A171995 1)pH is a figure expressing acidity or alkalinity or neural based on a logarithmic scale.If the logarithmic scale on 7 it is neutral, lower values are more acidity and higher values more alkaline. 2)pKa is the negative base-10 logarithm of the acid dissociation constant (Ka) of a solution.The lower the pKa value, the stronger the acid. 3)pI is the isoeletric point , is the pH at which particular molecule carries no net electrical charge or is electrically neutral in the statistical mean. https://padlet.com/izzy10/pHnbuffers/wish/341179428 2019-03-14 05:46:32 UTC https://padlet.com/izzy10/pHnbuffers/wish/341179428 MOHAMAD AKRAM MUAAZ BIN MOHD ZARI A169579 https://padlet.com/izzy10/pHnbuffers/wish/341233633
1) pH is a measure of the hydorgen ion concentration of a solution. Solutions with a high concentration of hydrogen ions have a low pH and solutions with a low concentrations of H+ ions have a high pH. 


2) The pKa value is one method used to indicate the strength of an acid. pKa is the negative log of the acid dissociation constant or Ka value. A lower pKa value indicates a stronger acid. That is, the lower value indicates the acid more fully dissociates in water.


3) pI (isoelectric point) is the pH at which the amino acid does not migrate in an electric field (the molecule carries no electrical charge). 

]]> 2019-03-14 10:00:37 UTC https://padlet.com/izzy10/pHnbuffers/wish/341233633 NUR RASYIDAH BINTI MOHD TAHIR A171755 https://padlet.com/izzy10/pHnbuffers/wish/341299207 1)pH = pH is a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid and higher values more alkaline.
2) pKa = pK a is the negative base-10 logarithm of the acid dissociation constant of a solution. pKa = -log 10 Ka. The lower the pKa value, the stronger the acid.
3) pl = Pl is also known as isoeletric point the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the stastical means.]]> 2019-03-14 13:03:34 UTC https://padlet.com/izzy10/pHnbuffers/wish/341299207 Lim Hongliang A170299 https://padlet.com/izzy10/pHnbuffers/wish/341515369 pH = Acidity or alkalinity of a solution
pKa = The strength of an acid
pI = The point where a molecule is electrically neutral]]> 2019-03-14 19:37:26 UTC https://padlet.com/izzy10/pHnbuffers/wish/341515369 MASYITAH BINTI ZAIHAN A168885 1) pH- a measure of the hydorgen ion concentration of a solution. 2) pKa- a method used to indicate the strength of an acid. 3) pI- it is an isoelectric point where the pH at which a molecule has a net neutral charge. https://padlet.com/izzy10/pHnbuffers/wish/341610277 2019-03-15 03:10:51 UTC https://padlet.com/izzy10/pHnbuffers/wish/341610277 KEK WEI YEE A170158 https://padlet.com/izzy10/pHnbuffers/wish/341611126 1)pH is the measure of acidity.
2) pKa is the pH at which an acid is half dissociated.
3) pI is the pH at which a molecule has a net neutral charge and also called as "isoelectric point".]]> 2019-03-15 03:16:15 UTC https://padlet.com/izzy10/pHnbuffers/wish/341611126 UMISAKINA A167712 https://padlet.com/izzy10/pHnbuffers/wish/341753312 pH is measure of the hydorgen ion concentration of a solution.

pKa is one method used to indicate the strength of an acid.

pl is the pH at which the amino acid does not migrate in an electric field.]]> 2019-03-15 13:48:56 UTC https://padlet.com/izzy10/pHnbuffers/wish/341753312 HARIYANI REDDY MURUGIAH (A170060 https://padlet.com/izzy10/pHnbuffers/wish/341870726 1.  pH is a figure to express the acidity or alkanity of a solution.
2. pKa is the negative base -10 logarithmof the acid dissociation constant (Ka) of a solution.      
3. pI is the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statistical mean.]]> 2019-03-15 17:41:25 UTC https://padlet.com/izzy10/pHnbuffers/wish/341870726 Nurul Huda Binti Harun (A169764) https://padlet.com/izzy10/pHnbuffers/wish/342005360 1)pH is a measure of the hydrogen ion concentration of a solution.
2)pKa is a measure of the strength of an acid in solution. 
It is defined as the negative base 10 log of the acid dissociation constant.
3) pI is called "isoelectronic point",this is the pH at which a molecule has a net neutral charge.

]]> 2019-03-16 13:43:24 UTC https://padlet.com/izzy10/pHnbuffers/wish/342005360 Nurul Aidila Adha binti Mohd Jaidi (A1 https://padlet.com/izzy10/pHnbuffers/wish/342008696 1)PH, quantitative measure of the acidity or basicity of aqueous or other liquid solutions.
2)pKa is known as acid disassociation constant. This means that it measures the strength of the acid in the whole solution
3)Isoelectronic point, pI. The isoelectronic point or isoionic point is the pH at which the amino acid does not migrate in an electric field.]]> 2019-03-16 14:22:34 UTC https://padlet.com/izzy10/pHnbuffers/wish/342008696 muhammad aliff hazim A167666 aliffalzelan https://padlet.com/izzy10/pHnbuffers/wish/342024406 1)pH is a scale to show the acidity or alkalinity of a solution. Above 7 to 14 means alkali while below them aare acid and 7 is neutral.


2)pKa show us the strength of an acidic solution. The lower value means the stronger the acid.

3) pl also known as isoelectronis point. It indicates the neutral pH of kfc amino acid..]]> 2019-03-16 16:58:32 UTC https://padlet.com/izzy10/pHnbuffers/wish/342024406 Alya Hazirah Binti che ros A168281 https://padlet.com/izzy10/pHnbuffers/wish/342055745 ph is measure of hydrogen ion concentration,  a measure of the acidicity or alkalinity of a solution.
pka is measure the strength of acid.
pI is the pH at which a particular molecule carries no net electrical charge or is electrically neutral ]]> 2019-03-16 23:02:04 UTC https://padlet.com/izzy10/pHnbuffers/wish/342055745 A165706 https://padlet.com/izzy10/pHnbuffers/wish/342071211 1. pH is a measure of the hydorgen ion concentration of a solution. Solutions with a high concentration of hydrogen ions have a low pH and solutions with a low concentrations of H+ ions have a high pH.

2. pKa is acid dissociation constant. The lower the pKa value, the stronger the strength of acid, the higher the stability of conjugate bases.

3. pI stand for isoelectric point. Isoelectric point is the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statistical mean.]]> 2019-03-17 03:40:20 UTC https://padlet.com/izzy10/pHnbuffers/wish/342071211 A167709 Hanis Nabilah bt Mohd. Nazman https://padlet.com/izzy10/pHnbuffers/wish/342078464 1. pH is logarithmic scale used to specify the acidity or basicity of an aqueous solution. At 25 °C, solutions with a pH less than 7 are acidic and solutions with a pH greater than 7 are basic. The neutral value of the pH depends on the temperature, being lower than 7 if the temperature increases. Pure water neutral, pH 7 at (25 °C), being neither an acid nor a base.
2. pKa is an acid dissociation constant, Ka, is a quantitative measure of the strength of an acid in solution. It is the equilibirium constant for a chemical reaction known as dissociation in the context of acid-base reactions. 
3.  pl is isoelectronic point or isoionic point is the pH at which the amino acid does not migrate in an electric field.
This means it is the pH at which the amino acid is neutral. The pI is given by the average of the pKas that involve the zwitterion.]]> 2019-03-17 05:42:03 UTC https://padlet.com/izzy10/pHnbuffers/wish/342078464 INTAN SYAZWANI BT FADZIL (A171692) https://padlet.com/izzy10/pHnbuffers/wish/342083021 1) pH : pH is a measure of the hydrogen ion concentration of a solution. Solutions with a high concentration of hydrogen ions have a low pH and solutions with a low concentrations of H+ ions have a high pH. Natural pH is 7.

2) pKa : The pka is the pH value at which a chemical species will accept or donate a proton.The lower the pKa, the stronger the acid and the greater the ability to donate a proton in aqueous solution.

3) pl :  Isoelectric point (pl) :  The isoelectric point (pI) is the pH of a solution at which the net charge of a protein becomes zero. At solution pH that is above the pI, the surface of the protein is predominantly negatively charged, and therefore like-charged molecules will exhibit repulsive forces. Likewise, at a solution pH that is below the pI, the surface of the protein is predominantly positively charged, and repulsion between proteins occurs. However, at the pI, the negative and positive charges are balanced, reducing repulsive electrostatic forces, and the attraction forces predominate, causing aggregation and precipitation. The pI of most proteins is in the pH range of 4 to 7. Mineral acids, such as hydrochloric and sulfuric acids, are used as precipitants]]> 2019-03-17 07:16:49 UTC https://padlet.com/izzy10/pHnbuffers/wish/342083021 NUR DINI MAZLAN A170217 https://padlet.com/izzy10/pHnbuffers/wish/342084339 1. pH
pH is a measure of the hydorgen ion concentration of a solution. Solutions with a high concentration of hydrogen ions have a low pH and solutions with a low concentration of H+ ions have a high pH.
 
2. pKa 
pKa value is one method used to indicate the strength of an acid. pKa is the negative log of the acid dissociation constant or Ka value. A lower pKa value indicates a stronger acid. That is, the lower value indicates the acid more fully dissociates in water.
 
3. pl
pl is  the pH at which a molecule has a net neutral charge. It is called the isoelectric point]]> 2019-03-17 07:40:42 UTC https://padlet.com/izzy10/pHnbuffers/wish/342084339 A170255 a170255 https://padlet.com/izzy10/pHnbuffers/wish/342087983 1. pH is the measure of hydrogen ion concentration of a solution. The higher the concentration of hydrogen ions, the lower the pH and vice versa. 

2. pKa is an association constant. It’s the negative logarithm of the ratio of dissociated acid and conjugated base, over the concentration of the associated chemical. The lower the pKa value, the stronger the acid.

3. pI is called the isoelectric point. This is the pH at which a molecule has a net neutral charge.
]]> 2019-03-17 08:40:28 UTC https://padlet.com/izzy10/pHnbuffers/wish/342087983 Chong Eu Gene A170561 https://padlet.com/izzy10/pHnbuffers/wish/342111445 1. pH: pH is the measure of hydrogen ion concentration of a solution. The natural pH is 7. The lower the hydrogen ion means the lower the concentration of H+ and caused the lower of pH.

2.pKa: The pKa value is one method used to indicate the strength of an acid. A lower pKa value indicates a stronger acid. pKa is negative log of the dissociation constant or Ka value.

3. pl : pl is isoelectric point . This is where the point where a molecule is electrically neutral]]> 2019-03-17 13:14:33 UTC https://padlet.com/izzy10/pHnbuffers/wish/342111445 MAIZATUL LAILY (A170830) https://padlet.com/izzy10/pHnbuffers/wish/342116027 1.)pH
A scale of acidity from 0 to 14. It tells how acids or alkaline a substance is. More acidic solutions have lower pH while more alkaline solutions have higher pH. Substances that are not acidic or alkaline is neutral solutions. 
2.) pKa
The negative base 10 logarithm of acid dissociation constant of a solutions. The lower pKa value, the stronger the acid. The pKa value is one method used to indicate the strength of an acid.
3.) pl
pl is pH at which a molecule has a net neutral charge. It is called the isoelectric point.]]> 2019-03-17 14:00:19 UTC https://padlet.com/izzy10/pHnbuffers/wish/342116027 Linggandran Nair (A16932 linggandran99 https://padlet.com/izzy10/pHnbuffers/wish/342282175 1.  pH is a measure of the hydorgen ion concentration of a solution. Solutions with a high concentration of hydrogen ions have a low pH(acidic) and solutions with a low concentrations of H+ ions have a high pH (alkaline)
2. pKa value is one method used to indicate the strength of an acid. pKa is the negative log of the acid dissociation constant or Ka value. That is, the lower value indicates the acid more fully dissociates in water. The reason pKa is used is because it describes acid dissociation using small decimal numbers. 
3. pl is the pH at which a molecule has a net neutral charge.It is called isoelectric point]]> 2019-03-18 08:35:37 UTC https://padlet.com/izzy10/pHnbuffers/wish/342282175 FATIN FARISHA BINTI ASMADI (A167539) https://padlet.com/izzy10/pHnbuffers/wish/342922591 pH - is a measurement of how acidic or basic a water-based solution is. The measure of acidity and alkalinity of a solution is based on a number scale where the value of 7 represents neutrality and lower numbers indicate the increases of acidity and higher numbers the increases of alkalinity.

pKa- The Ka value in chemistry is known as the acid-dissociation constant and is a measure of the ionic dissociation of the H+ proton in an acid solution, which shows the strength of that acid where greater dissociation occurs more acidic.

pl- The isoelectric point, is the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statistical mean. 
The net charge on the molecule is affected by the pH of its surrounding environment and can become more positively or negatively charged due to the gain or loss, respectively, of protons (H+).]]> 2019-03-19 15:34:44 UTC https://padlet.com/izzy10/pHnbuffers/wish/342922591 SHAHADAH AZIZI ( A169421 https://padlet.com/izzy10/pHnbuffers/wish/342925627 1) pH is a measure of hydrogen ion concentration of a solution.
2) pKa is the pH value at which a chemical species will accept or donate a proton. The lower the pKa, the stronger the acid and the greater the ability to donate a proton in aquoeus solution.
3)pl is pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statistical mean.]]> 2019-03-19 15:38:54 UTC https://padlet.com/izzy10/pHnbuffers/wish/342925627 NUR SYAFFA BINTI BAHADOR (A171752) a171752 https://padlet.com/izzy10/pHnbuffers/wish/342932393 1) pH is a measure of the hydrogen ion concentration of a solution. solution with high concentration of hydrogen ion have a low pH and solution with a low concentration of hydrogen ion have a high pH. 
2) pKa value is a method used to indicate the strenght of an acid. A lower pKa value indicates a stronger acid. The lower the pKa value, the stronger the acid. 
3) pl (isoeletric point) is the pH at which the amino acid does not migrate in an eletric field. The molecule carries no eletrical charge or electrically neutral.]]> 2019-03-19 15:49:07 UTC https://padlet.com/izzy10/pHnbuffers/wish/342932393 Ooi Zi Ling (A168441) https://padlet.com/izzy10/pHnbuffers/wish/343341689 1) pH is the measure of acidity. It is a measure of hydrogen ion ,H+ concentration in the solution. A solution with high concentration of hydrogen ion is more acidic, thus lower pH value and vice versa. The scale of pH ranges from 0 to 14, with pH 7 as neutral
2) pKa is an association constant. It is the negative logarithm of the ratio of dissociated acid and conjugated base, over the concentration of the associated chemical. The lower the value of pKa, the stonger the acid and vice versa. 
3) pI is the isoelectric point, that is the pH at which a molecule has a net neutral charge.]]> 2019-03-20 14:15:28 UTC https://padlet.com/izzy10/pHnbuffers/wish/343341689 SHAKILA RAJ JAKISS RAJENTHERAN (A168575 https://padlet.com/izzy10/pHnbuffers/wish/344690609 1.pH- A measure of acidity or alkalinity of water soluble substances (pH stands for potential of Hydrogen. A pH value is a number from 1 to 14, with 7 as the middle neutral point. Values below 7 indicate acidity which increases as the number decreases, 1 being the most acidic
2. pKa- a dissociation constant is a specific type of equilibrium constant that measures the propensity of a larger object to separate reversibly into smaller components, as when a complex falls apart into its component molecules, or when a salt splits up into its component ions
3. pI- called the isoelectric point this is the pH at which a molecule has a net neutral charge  ]]> 2019-03-25 06:53:06 UTC https://padlet.com/izzy10/pHnbuffers/wish/344690609 https://padlet.com/izzy10/pHnbuffers/wish/345344074 NUR AZMINA BT MOHAMAD
A170697

pH: the measure of acidity of the hydrogen ion concentration of the solution.

pKa: a dissociation constant. The lower pKa, the stronger the acid.

pI: the isoelectric point. This point where the pH at which molecule has net neutral charge

]]> 2019-03-26 16:18:22 UTC https://padlet.com/izzy10/pHnbuffers/wish/345344074 CHENG AI NEE https://padlet.com/izzy10/pHnbuffers/wish/345666568 A171929
1.) pH : a measure of hydrogen ion concentration in the solution. A solution with high concentration of hydrogen ion is more acidic, therefore lower pH value. The scale of pH ranges from 0 to 14, with pH 7 as neutral.
2.) pKa : it is an association constant. It is the negative logarithm of the ratio of dissociated acid and conjugate base, over the concentration of the associated chemical. The lower the value of pKa, the stronger the acid.
3.)pI is the isoelectric point, that isthe pH at which a molecule has a net neutral charge.

]]> 2019-03-27 12:48:49 UTC https://padlet.com/izzy10/pHnbuffers/wish/345666568 Eng Yen Teng https://padlet.com/izzy10/pHnbuffers/wish/345676461 A171880
1.pH is the measure of hydrogen ion H+, concentration in the solution.The higher the concentration of the hydrogen ion the more acidic the solution is.The scale of pH 1-14 , while pH 7 is neutral.
2.pKa is a method used to indicate the strength of acid.The lower the pKa value , the stronger the acidity.
3.pI stand for isoelectric point.pI is the pH which a molecule has no net charge.]]> 2019-03-27 13:09:10 UTC https://padlet.com/izzy10/pHnbuffers/wish/345676461 NUR RAIDAH BT ABD RAHIM https://padlet.com/izzy10/pHnbuffers/wish/345710967 A168799 
1. pH is  the measure of the hydrogen ion concentration in the solution 
2. pKa is the quantitative of the measure of the strength of the acid  in the solution. it also know as the negative logarithm of the ratio of the acid and conjugate base. 
3. pI is the pH at the molecule is no net electric charge. ]]> 2019-03-27 14:12:32 UTC https://padlet.com/izzy10/pHnbuffers/wish/345710967 NUR AFIQAH UNLONG (A167702) https://padlet.com/izzy10/pHnbuffers/wish/345750256 1. pH is the measure of the concentration of hydrogen ion in a solution, which also measure the acidity or alkalinity of the substance. A substances of pH lower than 7 is considered acidic, means that there is a high concentration of hydrogen ion. Meanwhile, above pH 7 is alkaline with low concentration of hydrogen ion.
2. pKa is an association constant; a value that is used to indicate the strength of an acid and tells us the level of acid dissociation. A smaller pKa value shows that the acid is more completely dissociated (strong acid), meanwhile a higher pKa value shows otherwise.
3. pI is the isoelectric point where a pH at which, there is no net electrical charge for a particular molecule. This also indicates that the molecule is electrically neutral. At the isoelectric point, it represents the pH where solubility is typically minimal.
]]> 2019-03-27 15:20:13 UTC https://padlet.com/izzy10/pHnbuffers/wish/345750256 NUR SYAHIDAH https://padlet.com/izzy10/pHnbuffers/wish/345957596 A169526
1. pH is the measure of the concentration of hydrogen ion in the solution.
2. pKa is a measure of acid strength. It depends on the identity and chemical properties of the acid.
3. pI called the “isoelectric point,” this is the pH at which a molecule has a net neutral charge]]> 2019-03-28 01:50:03 UTC https://padlet.com/izzy10/pHnbuffers/wish/345957596 IMRAN FIRDAUS BIN MOHD SANI (A169491) https://padlet.com/izzy10/pHnbuffers/wish/345971627
pH is the measure of the concentration of hydrogen ion in a solution, which also measure the acidity or alkalinity of the substance. A substances of pH lower than 7 is considered acidic, means that there is a high concentration of hydrogen ion. Above pH 7 is alkaline with low concentration of hydrogen ion.

pKa is an association constant; a value that is used to indicate the strength of an acid and tells us the level of acid dissociation. A smaller pKa value shows that the acid is more completely dissociated (strong acid), meanwhile a higher pKa value shows otherwise.

pI s the isoelectric point where a pH at which, there is no net electrical charge for a particular molecule. This also indicates that the molecule is electrically neutral. At the isoelectric point, it represents the pH where solubility is typically minimal.
]]> 2019-03-28 03:08:37 UTC https://padlet.com/izzy10/pHnbuffers/wish/345971627 ANIS SYAMIMI BINTI ABD MUBIN (A170059) asyamimi37 https://padlet.com/izzy10/pHnbuffers/wish/345976673  pH is a scale of acidity from 0 to 14. It tells how acidic or alkaline a substance is. More acidic solutions have lower pH. More alkaline solutions have higher pH. Substances that aren't acidic or alkaline (that is, neutral solutions) usually have a pH of 7. Acids have a pH that is less than 7. Alkalines have a pH that is greater than 7.

pKa value is a method that used to indicate the strength of an acid. A lower pKa value indicate a stronger acid. The higher pKa value shows otherwise.

pI is the isoelectrict point which is the pH at which a molecule has a net neutral change . it can be used to determine which protiens are more soluble


]]> 2019-03-28 03:41:07 UTC https://padlet.com/izzy10/pHnbuffers/wish/345976673 NOR HAFIZI LUQMAN (A169668) 1. pH is a measure of the hydrogen ion concentration of a solution. Solutions with a high concentration of hydrogen ion have a low pH and solutions with a low concentrations of H+ ions have a high pH. pH = -log[H+] 2. pKa used to describe the strength of acid.It is the negative base-10 logarithm of the acid dissociation constant of a solution.The lower the pKa value, the stronger the acid. 3. The isoelectronic point or isotonic point is the pH at which the amino acid does not migrate in an electric field, pH at which the amino acid is neutral. https://padlet.com/izzy10/pHnbuffers/wish/345982616

]]> 2019-03-28 04:20:52 UTC https://padlet.com/izzy10/pHnbuffers/wish/345982616 NUR FILZAH ATHIRAH BINTI MOHAMAD ZIN -A168706- filzah2710 https://padlet.com/izzy10/pHnbuffers/wish/346021817 1. pH is the measure of the hydrogen ion presence in the solution. It determine the solution is acid or base.High number of H+ ion in solution,more acid it is and if less amount of H+ ion presence,the solution is basic.
2. pKa is the determination of the capability of acid to completely dissolve or partially dissolve in water.The lower the pKa value, the stronger the acid(completely dissolve.)
3. pI is the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statistical mean.]]> 2019-03-28 08:32:53 UTC https://padlet.com/izzy10/pHnbuffers/wish/346021817 Fong Pui San A169769 https://padlet.com/izzy10/pHnbuffers/wish/346160727 1)pH is a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid and higher values more alkaline. The pH is equal to −log10 c, where c is the hydrogen ion concentration in moles per litre.
2) pKa is the negative base-10 logarithm of the acid dissociation constant (Ka) of a solution.
pKa is the negative base-10 logarithm of the acid dissociation constant (Ka) of a solution.]]> 2019-03-28 14:26:29 UTC https://padlet.com/izzy10/pHnbuffers/wish/346160727 NUR SYUHADA AHMAD - A169022 a169022 https://padlet.com/izzy10/pHnbuffers/wish/346198306 2019-03-28 15:30:54 UTC https://padlet.com/izzy10/pHnbuffers/wish/346198306 MASLINDA HALIM- A168905 https://padlet.com/izzy10/pHnbuffers/wish/346403210 1. pH is the measure of acidity. It’s the negative logarithm of the proton concentration. it convenient measure of the acidity/alkalinity of an aquaous solution at a specified temperature , usually 20 degree celcius or 25 degree celcius. it is measure on continuous scale from 0 to 14.

2. pka an association constant. It’s the negative logarithm of the ratio of dissociated acid and conjugated base, over the concentration of the associated chemical. pka is equal to negative log Ka which is acis dissociation constant. If the pka decrease , the more acis strength. if the pka decrease, the more the stability of conjugate base. This is used in order to show the acidity level of certain acids, particularly weak acids. 

3. pl ia an ampholyte in a acidic solution. Becomes positively charged and binds protons and migrates toward the cathode. It called the “isoelectric point,” this is the pH at which a molecule has a net neutral charge


]]> 2019-03-29 02:58:55 UTC https://padlet.com/izzy10/pHnbuffers/wish/346403210 TAN WEI JIAN https://padlet.com/izzy10/pHnbuffers/wish/346405246 A170206
1. pH is the measure of the hydrogen ion concentration of a solution. It is a figure expressing the acidity or alkalinity of a solution based on a scale which 7 is neutral, lower values are acid and higher values are alkaline. 
2. pKa is the negative log of the acid dissociation constant or Ka value. It is used to determine the strength of acid. Lower value of pKa indicates the acid more fully dissociates in water and higher value indicate less dissociates. 
3. pI is the isoelectric point which is the pH at which a molecule has a net neutral change. It can be used to determine the optimum pH]]> 2019-03-29 03:14:39 UTC https://padlet.com/izzy10/pHnbuffers/wish/346405246 Tang Shuh Hua A169670 https://padlet.com/izzy10/pHnbuffers/wish/346407259 1) pH is the measure of hydrogen ion concentration,  a measure of the acidity or alkalinity of a solution. The pH scale ranges from   0 to 14. pH 7 level is neutral, pH than less than 7 is considered as acidic while pH more than 7 is alkaline. 
2) pKa is the negative log of the acid dissociation constant or Ka value. It is one of the method used to indicate the strength of an acid.  A lower pKa value indicates a stronger acid as the acid  fully dissociates in water. 
3) pI is known as isoelectronic point which the pH at which the amino acid does not migrate in an electric field.]]> 2019-03-29 03:29:30 UTC https://padlet.com/izzy10/pHnbuffers/wish/346407259 https://padlet.com/izzy10/pHnbuffers/wish/346783144 Sitinurwahida (A170240)
pH -: measure of the concentration hydrogen in solution whether the solution is acidic , neutral or basic.
pKa - acid dissociation constant
pI- point that no net charges and is electrically neutral.]]> 2019-03-30 14:44:07 UTC https://padlet.com/izzy10/pHnbuffers/wish/346783144 Muhamad Afiq bin Ayob https://padlet.com/izzy10/pHnbuffers/wish/346789325 A170229
1- pH is a measure of the hydorgen ion concentration of a solution
2-  pKa is acid dissociation constant
3- pl is neutral which there's no net charges ]]> 2019-03-30 15:49:03 UTC https://padlet.com/izzy10/pHnbuffers/wish/346789325 a170239 https://padlet.com/izzy10/pHnbuffers/wish/346846620 1. pH is the measurement of the concentration of hydrogen ions in that is based on a scale where 7 is neutral, below 7 means the acidity is higher and above 7 meant that the alkalicness is higher.
2. pKa  is used to measure the strength of an acid where pKa is the negative log of the acid dissociation also called as the Ka value. The lower the pKa value shows that the acid is stronger while a higher pKa value shows that the acid is weaker.
3. pl can be used to determine the solubility of proteins as it is the isoelectric point where the pH of a molecule has a net neutral charge. pl is also the point where the protein is least soluble in water as protein has no net charge.]]> 2019-03-31 03:23:53 UTC https://padlet.com/izzy10/pHnbuffers/wish/346846620 A16785 a167685 https://padlet.com/izzy10/pHnbuffers/wish/346857127 1. A measure of acidity or alkalinity of water soluble substances which is stands for 'potential of Hydrogen'. A pH value is a number from 1 to 14, with 7 as the  neutral point. 
2. pKa is the negative log of the acid dissociation constant or Ka value. To indicate the strength of an acid.
3. Isoelectric point, pH at a molecule has a net neutral charge. Can be used to determine the optimum pH]]> 2019-03-31 06:41:12 UTC https://padlet.com/izzy10/pHnbuffers/wish/346857127 DILASHNY BALAKRISHNAN (A169193 https://padlet.com/izzy10/pHnbuffers/wish/346932389 pH—the measure of acidity. It’s the negative logarithm of the proton concentration.It's to measure the hydrogen ion concentration in a solution and will determine whether it'sacid,base or neutral.

pKa—an association constant. It’s the negative logarithm of the ratio of dissociated acid and conjugated base, over the concentration of the associated chemical. The lower the pKa value, the stronger the acid.

pI—called the “isoelectric point,” this is the pH at which a molecule has a net neutral charge.

]]> 2019-03-31 19:05:45 UTC https://padlet.com/izzy10/pHnbuffers/wish/346932389 Chiew Yuen Mae A169392 https://padlet.com/izzy10/pHnbuffers/wish/346932695 pH—In chemistry, pH is a scale used to specify how acidic or basic a water-based solution is. The pH scale is logarithmic and approximates the negative of the base 10 logarithm of the molar concentration of hydrogen ions in a solution.

pKa—An acid dissociation constant, Ka, (also known as acidity constant, or acid-ionization constant) is a quantitative measure of the strength of an acid in solution. It is the equilibrium constant for a chemical reaction known as dissociation in the context of acid–base reactions. It’s the negative logarithm of the ratio of dissociated acid and conjugated base, over the concentration of the associated chemical.

pI— The isoelectric point is the pH at which a particular molecule carries no net electrical charge or is electrically neutral in the statistical mean. 
]]> 2019-03-31 19:07:48 UTC https://padlet.com/izzy10/pHnbuffers/wish/346932695 WONG JIA ANN (A169880 https://padlet.com/izzy10/pHnbuffers/wish/347107788 pH- measure of concentration of hydrogen ion of a solution.pH is calculated as the negative log of a solution’s hydrogen ion concentration:
pH = -log10[H+]

pKa- It is a measure of strength of acid. It depends on the identity and chemical properties of the acid. The smaller the pKa value, the stronger the acid.
pKa = -log10[Ka] where Ka is the acid dissociation constant.

pI - The isolectric point is the pH where a molecule carries zero net charge and is electrically neutral.]]> 2019-04-01 11:21:32 UTC https://padlet.com/izzy10/pHnbuffers/wish/347107788 Siti Nooradlina Afiqah binti Kam Miring (A170523) daniadlina https://padlet.com/izzy10/pHnbuffers/wish/359402945 1) pH- a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid and higher values more alkaline. The pH is equal to −log10 c, where c is the hydrogen ion concentration in moles per litre.

2) pKa- A measure of strength of acid. The lower the pKa, the stronger the acid and the greater its ability to donate protons.

3) pI- The isoelectronic point or isoionic point is the pH at which the amino acid does not migrate in an electric field.This means it is the pH at which the amino acid is neutral, i.e. the zwitterion form is dominant.

]]> 2019-05-13 10:50:35 UTC https://padlet.com/izzy10/pHnbuffers/wish/359402945 NORHAFIZAH BT AZMI https://padlet.com/izzy10/pHnbuffers/wish/363544616 A169602
1-pH - a masure of the hydrogen ion concentration of a solution.The solutions with high concentration of hydrogen ions have low pH.The solutions with low concentration of hydrogen ions have high pH.
2-pKa - the negative log of the acid association constant or Ka value.The low pKa value indicates stronger acid.
3-pI - satnd for isoelectric point.Isoelectric point is the pH at which a particular molecule carries no net electric charge or is electrically neutral.

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pH- A figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acidic and higher is more alkaline.
pKa- A negative base-10 logarithm of the acid dissociation constant (Ka) of a solution. The lower the pKa value, the stronger the acid.
pl- the pH at which the amin0 acid does not migrate in an electric field. The molecule carries no electrical charge or electrically neutral.
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