29 Jan 2019 Lab Introductory (CHE 9) by Albert Y. A. Lim

29 Jan 2019 Lab Introductory (CHE 9) by Albert Y. A. Lim https://padlet.com/albertlimyeeann/CHE9LAB1 Lab Basic Skills & Safety Precautions en-us 2019-01-29 00:28:12 UTC 2025-12-31 21:36:00 UTC hello@padlet.com STATION 1 albertlimyeeann https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325200056 Memory Game
https://matchthememory.com/laboratoryequipment]]> 2019-01-29 00:28:12 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325200056 STATION 2 albertlimyeeann https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325200057 Using the Weighing Balance
http://www.videosmaller.com/]]> 2019-01-29 00:28:12 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325200057 STATION 3 albertlimyeeann https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325200058 (Type your answer)
1. ..........
2. ..........
3. ..........
4. ..........
5. ..........
6. ..........]]> 2019-01-29 00:28:12 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325200058 QWER https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325239888 Jie Ying
Divyaah
Zhi Wei
Carmen]]> 2019-01-29 04:31:23 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325239888 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325239949 Wei Yang
Bay
Jason
Bryan]]> 2019-01-29 04:31:37 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325239949 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325239956 YuRou
Renisha
Jiene
Hafsha]]> 2019-01-29 04:31:39 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325239956 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325239965 Jie Nee]]> 2019-01-29 04:31:41 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325239965 Happy https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325240113 2019-01-29 04:32:38 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325240113 No https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325241097 2019-01-29 04:40:10 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325241097 Station 1 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325241585 2019-01-29 04:43:41 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325241585 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325241586 Yey]]> 2019-01-29 04:43:41 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325241586 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325241788 2019-01-29 04:45:03 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325241788 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325241955 2019-01-29 04:45:59 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325241955 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242203
STATION 3

(Type your answer)
1. Use test tube holder to hold the test tube while heating the solution
2. Immediately wash it with water (it is going to widen the splash!)
3. Add acid to water because if you add water to acid, it releases heat that might be dangerous enough to boil.
4. Figure B (25.5ml)
5. Gram

]]> 2019-01-29 04:48:10 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242203 Happy https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242250 Yee Mun, Chui Ying, Dhivyaa, Ruth, Lih Tian]]> 2019-01-29 04:48:41 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242250 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242299 Jason ]]> 2019-01-29 04:49:15 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242299 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242333 Manisha
Chelsea
Ann
Amanda
Jason]]> 2019-01-29 04:49:27 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242333 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242337 2019-01-29 04:49:28 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242337 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242506 2019-01-29 04:51:17 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242506 Group member https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242661 Brandon
Qaliff
Tse Yang
Azfarul

]]> 2019-01-29 04:52:36 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242661 Station 2 manishamanickam32 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242746 2019-01-29 04:53:04 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325242746 Part https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243065 2019-01-29 04:55:31 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243065 Station 3 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243129 1. Firstly, make sure to hold the test tube with test tube holder .

2. Pour Sodium Bicarbonate powder to ~~dilute~~ NEUTRALISE the sulfuric acid. Next, clean the area with a cloth with some litmus in it. (Awesome!)

3. I will add acid to water. It is because it will react in a vigorous exothermic reaction which releases heat. When water is added to acid, the water boils and the acid may splatter and splash. That’s why acid should add to water.

4. 25.6 ml

5. Gram

6. ]]> 2019-01-29 04:56:03 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243129 Part 3 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243206 1. Use a test tube holder to hold the heated test tube
2. Use bicarbonate powder to neutralize the sulfuric acid

3. Acid to water, because the reaction is exothermic and when pouring water into acid it would cause violent splashes, which is dangerous
4. figure B, 25.6 mL
5. Gram]]> 2019-01-29 04:56:34 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243206 WORKSHEET albertlimyeeann https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243442 2019-01-29 04:58:39 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243442 HOW TO USE A WEIGHING BALANCE albertlimyeeann https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243454 2019-01-29 04:58:46 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243454 Station 3 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243477 1.Use a test tube holder to hold the test tube (any safety precautions?)
2.neutralize the acid into base (WHAT DOES THIS MEAN?)
3.water to acid , when you drop water to acid,it forms an extremely concentrated solution of acid initially. So much heat is released that the solution may boil very violently, splashing concentrated acid out of the container and all this
4.25.7ml, 25.6ml,25.7ml(average:25.7ml) (There is only one correct answer)
5.g

]]> 2019-01-29 04:59:00 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243477 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243724 6)]]> 2019-01-29 05:01:34 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243724 Station 3 Q6 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243805 2019-01-29 05:02:25 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325243805 19007731 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244205 2019-01-29 05:05:08 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244205 Q6 Station 3 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244462 2019-01-29 05:06:30 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244462 19007731 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244470 1. Ensure that the test tube is ~~clampled~~ held by test tube holder tightly upon heating ~~using a retort stand~~ and clamp or a test tube holder can be used to prevent the hands from getting burnt. The bunsen burner must be placed on a flat surface.
2. Clean the area using gloves and ensure that other members avoid the area. (method of cleaning?)
3. Add acid to the water. It is because adding water to concentrated acid can produce alot of heat which is fatal.
4.figure B. 25.7ml
5.grams

]]> 2019-01-29 05:06:35 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244470 Station 3 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244491 Q1)Use the test tube holder to hold the test tube. And tilt the test tube slightly so it doesn't face yourself or other people
Q2)Put lime,CaCo3 onto the spill to neutralise it
Q3)add water to acid to get more accurate concentration
Q4)24.4ml
Q5)grams]]> 2019-01-29 05:06:46 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244491 Station 6 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244517 2019-01-29 05:06:59 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244517 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244604 2019-01-29 05:07:53 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244604 Station 3 Question 6 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244768 2019-01-29 05:09:19 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244768 Station 3, Question 6 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244940 2019-01-29 05:10:51 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325244940 Station 2 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325245374 2019-01-29 05:15:04 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325245374 station 2 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325245687 2019-01-29 05:18:34 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325245687 https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325247142 2019-01-29 05:31:07 UTC https://padlet.com/albertlimyeeann/CHE9LAB1/wish/325247142