Chapter 3, Problem 6PP

Interpretation Introduction

Interpretation:

The $\text{p}{K}_{\text{a}}$ value for each acid is to be determined, and the stronger acid is to be identified.

Concept introduction:

The negative logarithm of $K_{\text{a}}$ gives the value of $\text{p}{K}_{\text{a}}$. Mathematically, it is expressed as follows:

$\text{p}{K}_{\text{a}}=-\text{ log (}{K}_{\text{a}}\text{)}$

The larger the value of $\text{p}{K}_{\text{a}}$, the weaker is the acid.