Chapter 13, Problem 153AE

(a)

Interpretation Introduction

Interpretation: The given acid $\text{HA}$ strong or weak, value of $K_{\text{a}}$ for $\text{HA}$ upon addition to water, percentage dissociation of $\text{HA}$ is to be stated.

Concept introduction: Strong acids dissociate completely and rapidly when dissolved in an aqueous solution and has very large value of $K_{\text{a}}$ while the weak acids dissociates partially and slowly in aqueous solution and has very low value of $K_{\text{a}}$.

Strong acids have high value of percentage dissociation while weak acids have low value of percentage dissociation.

To determine: The given acid $\text{HA}$ is strong or weak.

(b)

Interpretation Introduction

Interpretation: The given acid $\text{HA}$ strong or weak, value of $K_{\text{a}}$ for $\text{HA}$ upon addition to water, percentage dissociation of $\text{HA}$ is to be stated.

Concept introduction: Strong acids dissociate completely and rapidly when dissolved in an aqueous solution and has very large value of $K_{\text{a}}$ while the weak acids dissociates partially and slowly in aqueous solution and has very low value of $K_{\text{a}}$.

Strong acids have high value of percentage dissociation while weak acids have low value of percentage dissociation.

To determine: The value of $K_{\text{a}}$ for $\text{HA}$ upon addition to water, percentage dissociation of $\text{HA}$.