Chapter 17, Problem 17.9QP

Interpretation Introduction

Interpretation:

From the given concentrations of ammonia and ammonium chloride, $\text{pH}$ of the buffer solution has to be calculated.

Concept introduction:

• Buffer solution is defined as a solution that oppose changes in $\text{pH}$ while adding little amount of either an acid or a base.
• Buffer solution is a combination of a weak acid and its conjugate base or a weak base and its conjugate acid.
• $\text{pH}$ is the logarithm of the reciprocal of the hydrogen ion concentration in a solution.
•  $\text{pH}$ is used to determine the acidity or basicity of an aqueous solution.
• $\text{pH}\text{=}{\text{pK}}_{\text{a}}\text{+}\text{log}\frac{\text{[conjugate base]}}{\text{[acid]}}$