Chapter 9, Problem 9.113E

Interpretation Introduction

Interpretation:

The explanation corresponding to the given statement that a mixture of an ammonia and ammonium chloride behave as a buffer when dissolved in water is to be stated.

Concept introduction:

A solution that consists of a mixture of a weak base and its conjugate acid, or vice versa is known as buffer solution. Buffer is a solution that has the ability to resist changes in $\text{pH}$ when bases or acids are added.

The value of $\text{pH}$ ranges from $0$ to $14$. Higher is the concentration of hydronium ion; lower is the value of $\text{pH}$.