What is the concentration of $\left[\mathrm{H}_3 \mathrm{O}^{+}\right]$ion in $\mathrm{mol} \mathrm{L}^{-1}$…

What is the concentration of $\left[\mathrm{H}_3 \mathrm{O}^{+}\right]$ion in $\mathrm{mol} \mathrm{L}^{-1}$ of $0.001 \mathrm{M}$ acetic acid $(\alpha=0.134)$ ?
  1. $1.34 \times 10^{-4}$
  2. $1.54 \times 10^{-4}$
  3. $1.80 \times 10^{-4}$
  4. $1.70 \times 10^{-4}$

Solution

$\begin{aligned} {\left[\mathrm{H}_3 \mathrm{O}^{+}\right]=\alpha \times \mathrm{c} } & =0.134 \times 0.001 \\ & =1.34 \times 10^{-4} \mathrm{~mol} \mathrm{dm}^{-3}\end{aligned}$

Asked in: MHT CET 2023 (09 May Shift 2)

Practice more Ionic Equilibria questions on Aicharya