Chapter 14, Problem 122QGW

Interpretation Introduction

Interpretation: The specific instructions of using calculator to verify the $\text{pH}$ and concentration of ${\text{OH}}^{-}$ are to be written.

Concept Introduction: The $\text{pH}$ scale is used to express the acidity or basicity of solutions and is based on hydrogen ion concentration, $\left[{\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\right]$. It is a logarithm scale.

The pH of the acidic solution is:

$\text{pH}=-\text{log}\left[{\text{H}}_3{\text{O}}^{+}\right]$

The pH of the basic solution is:

$\text{pH}=-\text{log}\left[{\text{OH}}^{-}\right]$

The relation between $\text{pH}$ and $\text{pOH}$ is:

$\text{pH}+\text{pOH}=14$