Le chatelier's principle virtual lab answer key

Module 5 Lab 3 Rubric

Due to issues with this lab, only do "Part 1. b. Watch the Tutorials" and "Part 1. c. Cobalt Chloride and LeChatliers Principle Lab ."

When doing "Part 1. c.", click on the words "Cobalt Lab" (on the right side just above WorkBench 1) which will have some directions. After following the directions given there, create a Word document where you will answer the following 4 items:

Consider the chemical reaction: Co(H 2O) 6 2+(aq) + 4Cl -(aq) <==> CoCl 4 2-(aq) + 6H 2O(l)

1. Predict the effect of removing chloride ions. In which direction will the above reaction shift?

2. Predict the effect of adding HCl. In which direction will the above reaction shift?

3. Is the reaction endothermic or exothermic?

4. The environmental temperature for this lab is 25 oC. Calculate the K value (equilibrium constant) at this temperature as well as the K value at any other temperature of your choosing between 0 and 100 0C. Report this new K value and at what temperature it was found.

Submit the Word document for Module 5 Lab 3. Each item is worth 6 points.

Module 05 Lab 03 - Equilibrium Simulation

Instructions for Virtual Lab: Record all observations and take screenshots of your work.

Go to lab page: http://chemcollective.org/equilib

1. LeChatiler’s Principle

a. Chemical Equillibrium Concept Test (Take Screen shots of answers)

b. Watch the Tutorials

i. Concentration

ii. LeChatlier’s Principle

iii. Using LeChatliers Principle

iv. Reversible Reactions

v. Temperature

vi. Volume/Presure

c. Cobalt Chloride and LeChatiliers Principle Lab

2. Process of Reaction

a. Process of Reaction Concept Test (Take Screen shots of answers)

3. Under Equilibrium Calculations

a. Chemical Equilibrium Test (Take Screen shots of answers)

4. Common Ion Effect

a. Solubility and common Ion Effect

Submit a zip file of all screenshots for this lab activit