Chemistry - Ionic Equilibrium Question with Solution | TestHub

$\begin{array}{ccccc}\text{A}{\text{g}}_2\text{C}\text{r}{\text{O}}_4& \to & 2\text{A}{\text{g}}^{+}& +& \text{C}\text{r}{\text{O}}_4^{2-}\\ \text{s}& & 2\text{s}& & \text{s}\end{array}$

${\text{K}}_{\text{s}\text{p}}={\left(2\text{s}\right)}^2\text{s}=4{\text{s}}^2$

$\text{s}={\left(\frac{{\text{K}}_{\text{s}\text{p}}}{4}\right)}^{\frac{1}{3}}={\left(\frac{32\times {10}^{-12}}{4}\right)}^{\frac{1}{3}}=2\times {10}^{-4}\text{M}$