Chemistry - Ionic Equilibrium Question with Solution | TestHub

$\begin{array}{ccccccc}{\text{X}}^{-}& +& {\text{H}}_2\text{O}& \rightleftharpoons & \text{HX}& +& {\text{OH}}^{-}\\ 1-\text{h}& & & & \text{h}& & \text{h}\end{array}$

$\mathrm{h}=\sqrt{\frac{{\mathrm{K}}_{\mathrm{w}}}{{\mathrm{K}}_{\mathrm{a}}\times \mathrm{C}}}=\sqrt{\frac{{10}^{-14}}{{10}^{-5}\times 0.1}}={10}^{-4}$

Or ${10}^{-2}\mathrm{\%}$ i.e., $0.01\mathrm{\%}$