Question

Solubility of the ${Hg}_2{Cl}_2$ in a solvent is $S$ moles/litre. Its solubility product will be:

• A. $16S^2$
• B. $8S^2$
• C. $16S^4$
• D. $4S^3$

Answer 1

Answer: (D)

$4S^3$

$H{g}_{2}C{l}_2\rightleftharpoons H{g}_2^{2+}+2C{l}^{-}$

$S$ $2S$

$K_{sp}=\left[H{g}_2^{2+}\right][C{l}^{-}{]}^2=(S\left)\right(2S{)}^2=4S^3$