Solubility product of Silver chloride is ${10}^{-\mathrm{x}} {\mathrm{M}}^2.$ Solubility of Silver chloride  is $1.435\times {10}^{-3} \mathrm{g}/\mathrm{litre}. \mathrm{Value} \mathrm{of} \text{'}\mathrm{x}\text{'} \mathrm{is}$

$$\begin{gathered} \mathrm{AgCl}\left(\mathrm{s}\right)\rightleftharpoons {\mathrm{Ag}}^{+}\left(\mathrm{aq}\right)+{\mathrm{Cl}}^{-}\left(\mathrm{aq}\right) \\ \mathrm{s} \mathrm{s} \\ {\mathrm{K}}_{\mathrm{sp}}={\mathrm{s}}^2 \\ {10}^{-\mathrm{x}} {\mathrm{M}}^2={\mathrm{s}}^2; \\ \mathrm{s}=\frac{1.435\times {10}^{-3}}{143.5}\left(\mathrm{GFW} \mathrm{of} \mathrm{AgCl}=143.5 \mathrm{g}\right) \\ \mathrm{s}={10}^{-5} \mathrm{mole}/\mathrm{lit} \\ {\mathrm{s}}^2={10}^{-10} {\mathrm{M}}^2; \end{gathered}$$