General Chemistry 2

Question

The solubility of AgCl is expected to be (lower/equal/higher) in pure water than a solution of NaCl

. This is because the NaCl solution contains (higher pH/sodium ions/chloride ions) that (maintain/inhibit/promote)further dissociation of 

AgCl into Ag+ and Cl−

. Hint: Consider LeChatelier's principle.

Answer 1

higher

chloride ions

inhibit

AgCl -> Ag⁺ + Cl⁻

Solid silver chloride is in equilibrium with silver ions and chloride ions. When chloride ions are added (through dissolution of sodium chloride), the equilibrium shifts to the left in accordance to the LeChatelier’s Principle