Question

If $K_{sp}$ of $Hg_2I_2$ is $3.2 \times 10^{-23}$ then its solubility will be

• A. $4 \times 10^{-8}$
• B. $2 \times 10^{-8}$
• C. $3.2 \times 10^{-6}$
• D. $5 \times 10^{-7}$

Answer 1

Answer: (B)

$Hg_2I_2(aq)$ $\rightleftharpoons$􏰇􏰇􏰇 $Hg_2^{2+}$(aq) + $2I^-(aq)$
Here, $K_{SP} = 4s^3$