Chapter 6, Problem 6.21P

Interpretation Introduction

Interpretation:

Which one of the given acids ${\text{HNO}}_{\text{3}}$ and ${\text{CH}}_{\text{3}}{\text{CO}}_{\text{2}}\text{H}$ is stronger is to be predicted on the basis of the difference in resonance delocalization.

Concept introduction:

Strength of an acid depends on the stability of the anion left after the proton has dissociated. The stability of an anion depends on the delocalization of the charge. Delocalization is the result of resonance. More the number of resonance forms of the anion, more the number of atoms over which the charge is delocalized and higher the stability of the anion. Higher the stability of the anion, stronger the acid.