Chapter 6, Problem 6B.4E

(a)

Interpretation Introduction

Interpretation:

The $\text{pH}$ of a desired solution has to be calculated.

Concept Introduction:

Negative logarithm of the concentration of hydronium ion is the $\text{pH}$ of solution.  This can be given in equation form as follows;

    $\text{pH}=-\log [{\text{H}}_{\text{3}}{\text{O}}^{\text{+}}]$

(b)

Interpretation Introduction

Interpretation:

The $\text{pH}$ of the actual solution after evaporation has to be calculated.

Concept Introduction:

Refer part (a).