Embibe Experts Solutions for Chapter: Ionic Equilibrium, Exercise 1: Exercise

Which substance on mixing with ammonium hydroxide forms a buffer solution?

The ${\mathrm{K}}_{\mathrm{a}}$ of propionic acid is $1.84\times 10^{-5}$. What is the pH of a solution containing $0.5 \mathrm{M}$ propionic acid and $0.5 \mathrm{M}$ sodium propionate ?

Calculate the degree of ionization of 0.05 M acetic acid if its ${\mathrm{pK}}_{\mathrm{a}} \mathrm{is} 4.74.$ How is the degree of dissociation affected when its solution is also 0.01 M in HCl ?

Give one main limitation of Bronsted-Lowry concept of acids and bases.

Write the conjugate acid of ${\mathrm{OH}}^{-}$ and ${\mathrm{NH}}_3$.

Write any two limitations of Arrhenius theory of acids and bases.

Give the evidences in favour of Arrhenius theory of electrolytic dissociation.

A dilute solution of $\mathrm{HCl}$ contains $\left[{\mathrm{H}}_3{\mathrm{O}}^{+}\right]=1\times {10}^{-5}$, calculate the $\left[{\mathrm{OH}}^{-}\right]$ of this solution.