Question

The solubility of $H{g}_{2}C{l}_2$ is $S$ molar. Its solubility product is:

• A. $25S^4$
• B. $16S^4$
• C. $4S^4$
• D. $4S^3$

Answer 1

The correct option is D $4S^3$

$H{g}_{2}C{l}_2\rightleftharpoons H{g}_2^{2+}+2C{l}^{-}$
S 2S
$K_{sp}=S.(2S{)}^2=4S^3$