Excess calcium chloride is added to water where the equilibrium CaCl2(s) ⇄ Ca2+(aq) + 2Cl−(aq)                          Kc = 6.32x10-4 is established. What is the Ca2+(aq) concentration? I am not sure how to calculate this but from the answer key, the correct answer should be 5.41x10-2

Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter12: Chemical Equilibrium
Section: Chapter Questions
Problem 12.11PAE
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Excess calcium chloride is added to water where the equilibrium

CaCl2(s) ⇄ Ca2+(aq) + 2Cl−(aq)                          Kc = 6.32x10-4 is established. What is the Ca2+(aq) concentration?

I am not sure how to calculate this but from the answer key, the correct answer should be 5.41x10-2

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