Chemistry - Ionic Equilibrium Question with Solution | TestHub

$\left[{\text{H}}^{+}\right]=\sqrt{{\text{k}}_1{\text{C}}_1+{\text{k}}_2{\text{C}}_2}$

(for mixture of two weak acids)

$=\sqrt{\text{1.8}\times 10^{-5}\times \text{0.01}+\text{6.3}\times 10^{-5}\times \text{0.01}}$

$=\sqrt{\text{18}\times 10^{-8}+63\times 10^{-8}}$

$=9\times 10^{-4}$