Chapter 13, Problem 178CP

Interpretation Introduction

Interpretation: The volume and concentration of ${\text{NH}}_{\text{3}}$ is given. The mass of $\text{NaOH}$ is to be calculated for the given conditions.

Concept introduction: The percent ionization of ${\text{NH}}_{\text{3}}$ is calculated by taking the concentration of ${\text{NH}}_{\text{4}}{}^{+}$ ions, divided by its initial concentration of base and multiplying the ratio by $\text{100}$.

The equilibrium constant $K_{\text{b}}$ is the ratio of product of equilibrium concentrations of product to the equilibrium concentration of reactant base.