Chapter 2, Problem 7RQ

Summary Introduction

To explain:

The term $pH$ scale, acid-base, and buffer and also determines how buffers reduce changes in $pH$ when hydrogen ions or hydroxide ions are added to a solution and also explain why this phenomenon is important in organisms.

Introduction:

The pH scale provides a means of comparing the concentration of hydroxide ions ( ${\text{OH}}^{\text{-}}$) or hydrogen ion ( ${\text{H}}^{\text{+}}$) in solution. The presence of hydride ion in the solution determines the acidity of the solution while the presence of hydroxide ion in the solution determines the basicity of a solution.