Chemistry - Ionic Equilibrium Question with Solution | TestHub

$\underset{\text{s}}{{\text{Ag}}_2{\text{CrO}}_4}\rightleftharpoons \underset{\text{2s}}{{\text{2Ag}}^{+}}+\underset{\text{s}}{{\text{CrO}}_4^{2-}}\text{;}{\text{K}}_{\text{sp}}=\text{1}\text{.1}\times {\text{10}}^{-\text{12}}\text{}$
${\text{K}}_{\text{sp}}={\left[{\text{Ag}}^{+}\right]}^2·\left[{\text{CrO}}_4^{2-}\right]$

${\text{K}}_{\text{sp}}= {[2\text{s}]}^2. \left[\text{s}\right] = 4{\text{s}}^3$

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

$=\frac{1.1\times {10}^{-12}}{4}$

$\text{}\text{s} =\sqrt[3]{275\times {10}^{-15}}\text{}$

$=6.5\times {10}^{-5 }\text{mol} {\text{L}}^{-1}$

$\Rightarrow \text{s}=6.53\times {10}^{-5}$