Chemistry - Ionic Equilibrium Question with Solution | TestHub

For the reaction of the$\text{A}{\text{B}}_2$i.e.$\left(\text{P}\text{b}\text{C}{\text{l}}_2\right)$

${\text{K}}_{\text{s}\text{p}}=4{\text{s}}^3$

Or,$\text{S}={\left[\frac{{\text{K}}_{\text{s}\text{p}}}{4}\right]}^{\frac{1}{3}}$

Given,${\text{K}}_{\text{s}\text{p}}=1.8\times {10}^{-4}\text{m}\text{o}{\text{l}}^3\text{d}{\text{m}}^{-9}$

$\therefore$Solubility of$\text{P}{\text{b}}^{+2}$ions will be

$\therefore \text{S}={\left[\frac{1.8\times {10}^{-4}}{4}\right]}^{\frac{1}{3}}$

$={\left[0.45\times {10}^{-4}\right]}^{\frac{1}{3}}\text{m}\text{o}\text{l}.\text{d}{\text{m}}^{-3}$