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In which of the following aqueous solutions would you expect AgCl to have the greatest solubility? Why?

A) 0.015M NaCl

B) 0.020M KCl

C) 0.020M BaCl₂

D) 0.020M AgNO₃

E) pure water

Respuesta :

superman1987

Answer:

E) pure water.

Explanation:

  • AgCl is a sparingly soluble salt in water which is dissociates according to the reaction:

AgCl ⇄ Ag⁺ + Cl⁻.

  • Adding NaCl, KCl, BaCl₂, and AgNO₃ will shift the equilibrium to the left according to Le Chatelier's principle that the presence of these salts will increase the concentration of Cl⁻ (NaCl, KCl, BaCl₂) or increase the concentration of Ag⁺ (AgNO₃), so the reaction is shifted towards the reactants side decreasing the solubility of AgCl.

So, the greatest solubility of AgCl will be in pure water.

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