Chapter 4, Problem 40CTQ

Interpretation Introduction

Interpretation: Energy required to break $\text{H}-\text{Z}$ bond of strong acid in accordance to strong acid zero $\text{p}{K}_{\text{a}}$ assumption should be determined.

Concept introduction: $\text{p}{K}_a$ is defined as the negative logarithm of dissociation constant of acid $\left(K_a\right)$ . If conjugate acid has high $\text{p}{K}_a$ value, its dissociation constant will be less. As a result, it cannot dissociate completely in solutions and acts as weak acid. The strength of the base and its conjugate acid are inversely related to each other. So base that corresponds to weak conjugate acid will be strong base. Higher the $\text{p}{K}_a$ of conjugate acid, the stronger the base and vice-versa.