Chapter 8.3, Problem 8.15P

(a)

Interpretation Introduction

Interpretation:

The conjugate acids of ${\text{NO}}_{\text{2}}{}^{\text{-}}$ and ${\text{NO}}_{\text{3}}{}^{\text{-}}$ has to be drawn.

Concept Introduction:

Conjugate acid:  A conjugate acid is the product formed by a gain of a proton by a base.  The conjugate acid of the base B will be ${\text{HB}}^{\text{+}}\text{.}$

(b)

Interpretation Introduction

Interpretation:

Among nitrous acid and nitric acid, the stronger acid has to be given.