Chapter 6, Problem 52QRT

(a)

Interpretation Introduction

Interpretation:

The resonance structure ${\text{HNO}}_{\text{3}}$ makes the greatest contribution to the resonance hybrid has to be predicted by formal charges.

Concept Introduction:

Resonance is a method to relating to describe about delocalized electrons inside certain molecules or polyatomic ions where the Lewis structure can’t be expressed.  A molecule or ion containing delocalized electrons can be represented by using several similar structures such structures are called as resonance structures or canonical structures.

The formula for the formal charge can be written as

  $\text{Formal}\text{charge=}\text{Valence}\text{electrons-lone}\text{pair}\text{electrons}\text{-}\frac{\text{Bonding}\text{electrons}}{\text{2}}$

(b)

Interpretation Introduction

Interpretation:

The resonance structure ${\text{SO}}_{\text{3}}$ makes the greatest contribution to the resonance hybrid has to be predicted by formal charges.

Concept Introduction:

Refer part (a).