posted by Kharris .
CO(h20)6 2+ + 4Cl- <=> CoCl4 2- + 6H20
What would AgNO3 do when added to this?
What is the equilibrium expression?
Adding AgNO3 to the solution will ppt AgCl, removing Cl^- from the left side of the equation and shifting the equilibrium to the left.
Keq = (CoCl4^-)/(CoH2O)6^+2 + (Cl^-)^4