Chapter 2.3, Problem 2.13E

Interpretation Introduction

Interpretation: Among ${\text{HNO}}_{\text{2}}$ and ${\text{H}}_3{\text{PO}}_3$ the stronger acid should be determined and value of $K_{\text{a}}$ for each acid is to be calculated.

Concept introduction: The formula to calculate $K_{\text{a}}$ from $\text{p}{K}_{\text{a}}$ is given as follows:

  $K_{\text{a}}={10}^{-\text{p}{K}_{\text{a}}}$

Where,

• $K_{\text{a}}$denotes dissociation constant of acid.