Question

The molar solubility of zns is 1.6 Ã 10-12 m in pure water. Calculate the ksp for zns.

Answer 1

Answer:

The solubility product of zinc sulfide is $2.56\times 10^{-24}$.

Explanation:

Solubility of the zinc sulfide = $S=1.6\times 10^{-12}$

$ZnS\rightleftharpoons Zn^{2+}+S^{2-}$

                S        S

The expression of solubility product is given by :

$K_{sp}=[Zn^{2+}]\times [S^{2-}]$

$K_{sp}=S\times S=S^2$

$=1.6\times 10^{-12}\times 1.6\times 10^{-12}=2.56\times 10^{-24}$

The solubility product of zinc sulfide is $2.56\times 10^{-24}$.