Chapter 16, Problem 34PE

(a)

Interpretation Introduction

Interpretation:

Concentration of hydrogen ions for concentration of $\left[{\text{OH}}^{-}\right]$ to be $4.5\times {10}^{-2}$ has to be calculated.

Concept Introduction:

The concentration of ${\text{H}}^{+}$ decides the acidity in solution and concentration of ${\text{OH}}^{-}$ decides the basicity in solution.

$\text{pH}$ is defined as concentration of hydrogen ion. It also explains about the acidity of solution. $\text{pOH}$ is defined as the concentration of hydroxide ion. It also explains about the basicity of solution.

(b)

Interpretation Introduction

Interpretation:

Concentration of hydrogen ions for concentration of $\left[{\text{OH}}^{-}\right]$ to be $5.2\times {10}^{-9}$ has to be calculated.

Concept Introduction:

Refer to part (a).