Bio project Acids vs Bases and Nonpolar vs Polar Molecules by Kate Coughlin https://padlet.com/katecoughlin/aydmwyfaz03m5dvt en-us 2020-10-23 14:35:54 UTC 2025-03-20 01:07:10 UTC hello@padlet.com Acids v. Bases Follow Up Activity katecoughlin https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865340901 Question 1. In the experiment you see the affect of two substances, baking soda and hydrochloric acid, on the litmus paper. Which of the unknown substances is an acid? Which is a base? How do you know?
Question 2. If the litmus paper were not to turn any color what would this tell you about the substance being tested? What would its pH be?
Question 3. How do acids and bases affect us in the real world? Why is pH important to humans and the environment?
Question 4. Hypothesize: If the pH of the water in a lake were to rise what would happen to the life in the lake?]]> 2020-10-27 12:22:38 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865340901 Polar v. Nonpolar Follow up activity jmackinnon3 https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865342942 Question 1. Why did oil and water not mix? Form a hypothesis as to why they do not? Elaborate on what factors go into it. This should be in paragraph form. Use evidence, reasoning, and claims.
Question 2. What happened when ammonia and water mixed in the same beaker?
Question 3.  Name two examples of substances that would not mix with water and two different substances that would mix with water. Make sure to include a reasoning.  ]]> 2020-10-27 12:23:23 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865342942 Polar V. Nonpolar experiment jmackinnon3 https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865354141 1. Pour 10 ml of water into the beaker
2. Squirt some food coloring into the beaker and stir until mixed. 
3. Pour 10 ml of vegetable oil into the the beaker.
4. Mix the beaker and notice what happens with the substances.
5. Pour 10 ml of water into a new beaker. 
6. Add food coloring to this beaker and mix. 
7. Pour in 10 ml of ammonia into this beaker and stir. 
8. Notice ]]> 2020-10-27 12:27:10 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865354141 Acid v. Base Materials katecoughlin https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865357391 Litmus Paper
20 mL of hydrochloric acid 20 mL lemon juice
20 g baking soda
20 mL dish soap
20 mL Water
5 20 mL beakers
4 pipettes
]]> 2020-10-27 12:28:11 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865357391 Acid v. Base Experiment katecoughlin https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865359477 1. Pour about 20 mL of water into a 20 mL. test tube. Then add about 10 g of baking soda into the water.
2. Dip the Litmus Paper into the baking soda half way and observe any changes that occur. 
3. Lay the litmus paper aside to dry.
4. Pour about 20 mL of hydrochloric acid into a 20 mL test tube. 
5. Dip the Litmus paper into the test tube halfway. Observe any changes that occur. 
6. Lay the litmus paper aside to dry. 
7. Repeat steps 2 and 3 with the other two substances and observe any changes. ]]> 2020-10-27 12:28:53 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865359477 Polar v. Nonpolar Materials jmackinnon3 https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865368229 1. 20 ml of water
2. 10 ml of vegetable oil
3. 100 ml beaker
4. food coloring
5. 10 ml of ammonia ]]> 2020-10-27 12:31:45 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865368229 Acids v. Bases: Purpose and Objective katecoughlin https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865380314 The litmus paper experiment is going to show us the affect of acids and bases on litmus paper. Litmus paper is a pH indicator. A pH indicator will have different reactions when it comes into contact with an acid vs a base. Acids are substances that have a pH above 7. Bases are substances that have a pH below 7. Throughout this experiment, observe how each substance affects the litmus paper. Why is it important to know the pH of a substance?]]> 2020-10-27 12:35:28 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865380314 Polar V. Nonpolar: Purpose and Objective jmackinnon3 https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865403603 This experiment displays how Non Polar and Polar substances react with each other. For a substance to be polar, it means that the sharing of electrons between bonds is not even. On the other end, for a substance to be non polar it shares the electrons equally. When we relate this to the experiment we see how non polar and polar substances react to each other. Similar substances and different substances have separate interactions when mixed together.  ]]> 2020-10-27 12:42:25 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/865403603 Acid v. Base Experiment jmackinnon3 https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875317072 2020-10-30 01:06:11 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875317072 Polar vs. Nonpolar Experiment jmackinnon3 https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875394161 2020-10-30 01:50:01 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875394161 Polar vs. Nonpolar Image jmackinnon3 https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875447551 2020-10-30 02:25:39 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875447551 Helpful Polar vs. Non Polar website jmackinnon3 https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875449975 2020-10-30 02:27:14 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875449975 Nonpolar vs. polar summary jmackinnon3 https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875455173 We wanted you to take away multiple key concepts with this experiment and activity. With the experiment it showed how non polar and polar bonds do not mix. The oil does not dissolve in. the water solvent. The charges of a polar substance and a nonpolar substance do not attract to each other. The charges do not come together to make one mixture. Oil is much less dense than water so it floats to the top and forms a layer above the water. We then find out how two polar substances react. When ammonia and water mix together the bonds attract and create more bonds which result in one solution. ]]> 2020-10-30 02:30:44 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875455173 For More Info: Litmus Paper Experiment katecoughlin https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875460522 2020-10-30 02:34:12 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875460522 For More Info: Why pH is important katecoughlin https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875462243 2020-10-30 02:35:25 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875462243 Acid vs Base Image: pH Scale katecoughlin https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875466604 2020-10-30 02:38:12 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875466604 Acid vs Bases Summary katecoughlin https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875468134 From this experiment, we wanted you to see the difference between acids and bases. The Litmus paper test can show us whether a substance is an acid or base by changing color. This color change tells you the pH of the substance. The litmus paper turns red if the substance has a pH less than 7, therefore it is an acid. The litmus paper turns blue if the substance's pH is greater than 7, therefore it is a base. pH is determined by the amount of H+ ions and OH- ions in a substance. If a substance has a greater concentration of H+ ions, the substance will be an acid. Bases have a greater concentration of OH- ions. Knowing the difference between acids and bases is important because pH plays a major role in the environment as well as in our bodies. In the medical profession or in environmental sciences understand and testing substance's pHs can be crucial for curing an illness or finding the cause of major changes in an ecosystem. ]]> 2020-10-30 02:39:11 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875468134 Citations katecoughlin https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875484245 Papiewski, John. "Easy and Fast pH experiments with Litmus." Published March 2, 2019. 
https://sciencing.com/easy-fast-ph-experiments-litmus-9291.html

]]> 2020-10-30 02:50:22 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/875484245 Citations jmackinnon3 https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/892447922 https://sciencing.com/differences-between-polar-nonpolar-8562432.html]]> 2020-11-05 01:57:05 UTC https://padlet.com/katecoughlin/aydmwyfaz03m5dvt/wish/892447922