Chapter 13, Problem 92E

(a)

Interpretation Introduction

Interpretation: A solution prepared by mixing the given amount of bases is given. The major species present, $\left[{\text{OH}}^{-}\right]$ and the $\text{pH}$ of this solution is to be calculated.

Concept introduction: The $\text{pH}$ of a solution is define as a figure that expresses the acidity of the alkalinity of a given solution. A logarithmic scale is used on which, the value $7$ corresponds to a neutral species, a value less than $7$ corresponds to an acid and a value greater than $7$ corresponds to a base.

The $\text{pH}$ of a solution is calculated by the formula, $\text{pH}=-\log \left[{\text{H}}^{+}\right]$

The $\text{pOH}$ of a solution is calculated by the formula, $\text{pOH}=-\log \left[{\text{OH}}^{-}\right]$

The sum, $\text{pH}+\text{pOH}=14$

To determine: The major species present, $\left[{\text{OH}}^{-}\right]$ and the $\text{pH}$ of the given solution.

(b)

Interpretation Introduction

Interpretation: A solution prepared by mixing the given amount of bases is given. The major species present, $\left[{\text{OH}}^{-}\right]$ and the $\text{pH}$ of this solution is to be calculated.

Concept introduction: The $\text{pH}$ of a solution is define as a figure that expresses the acidity of the alkalinity of a given solution. A logarithmic scale is used on which, the value $7$ corresponds to a neutral species, a value less than $7$ corresponds to an acid and a value greater than $7$ corresponds to a base.

The $\text{pH}$ of a solution is calculated by the formula, $\text{pH}=-\log \left[{\text{H}}^{+}\right]$

The $\text{pOH}$ of a solution is calculated by the formula, $\text{pOH}=-\log \left[{\text{OH}}^{-}\right]$

The sum, $\text{pH}+\text{pOH}=14$

To determine: The major species present, $\left[{\text{OH}}^{-}\right]$ and the $\text{pH}$ of the given solution.