In which of the following, solubility of AgCl will be maximum? — Ionic Equilibrium Chemistry Question
Question
In which of the following, solubility of AgCl will be maximum?
Answer: C
💡 Solution & Explanation
AgCl is a sparingly soluble salt. In pure water, its solubility is governed strictly by its $K_{sp}$. In $\text{AgNO}_3$ and NaCl, the common ion effect (from $\text{Ag}^+$ and $\text{Cl}^-$ respectively) significantly decreases its solubility. However, in aqueous $\text{NH}_3$, $\text{Ag}^+$ ions react to form a highly stable soluble complex ion, $[\text{Ag(NH}_3)_2]^+$, pulling the dissolution equilibrium forward and drastically increasing the solubility.
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