Chapter 16, Problem 8ALQ

Interpretation Introduction

Interpretation:

Whether the $\text{pH}$ of a solution can be negative should be explained.

Concept Introduction:

To express the small number, p scale is used, which implies to take the log of a number. Since, the concentration of ${\text{[H}}^{+}\text{]}$ in aqueous solution is small, by using the p scale in the form of $\text{pH}$ scale, it is better way to represent acidity of solution.

Thus, $\text{pH}$ = ${\text{-log [H}}^{+}\text{]}$.