Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter16: Solubility And Precipitation Equilibria
Section: Chapter Questions
Problem 37P
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Question
please do #3
![PRE-LAB QUESTIONS
EXPERIMENT
Equilibrium Constants and
Le Châtelier's Principle: CoCl2
20
1. Use the following data to calculate the equilibrium constant for the cobalt chloride system.
Show all work.
Tube No.
A (710 nm)
A (740 nm)
1
0.007
0.003
0.007
0.002
3
0.004
0.001
4
0.012
0.002
5.
0.062
0.001
6.
0.593
0.021
7
2.664
0.124
8.
3.362
0.484
3.545
0.898
10
3.545
1.086
2. Use Excel® to plot the percent distribution of [Co(H20)6]?* and [COCL] as a function of
[HCI], from the data in Question 1. Show your calculations.
3. Write the equation for the expected reaction when silver nitrate is added to a solution of
cobalt chloride.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F20c0eb8a-c3dc-452b-bd2e-34f451016f93%2F21d6a799-1d3b-437a-8c8a-7c64336b7214%2F73dley_processed.png&w=3840&q=75)
Transcribed Image Text:PRE-LAB QUESTIONS
EXPERIMENT
Equilibrium Constants and
Le Châtelier's Principle: CoCl2
20
1. Use the following data to calculate the equilibrium constant for the cobalt chloride system.
Show all work.
Tube No.
A (710 nm)
A (740 nm)
1
0.007
0.003
0.007
0.002
3
0.004
0.001
4
0.012
0.002
5.
0.062
0.001
6.
0.593
0.021
7
2.664
0.124
8.
3.362
0.484
3.545
0.898
10
3.545
1.086
2. Use Excel® to plot the percent distribution of [Co(H20)6]?* and [COCL] as a function of
[HCI], from the data in Question 1. Show your calculations.
3. Write the equation for the expected reaction when silver nitrate is added to a solution of
cobalt chloride.
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