   Chapter 8.3, Problem 8.5CYU

Chapter
Section
Textbook Problem

Calculate formal charges on each atom in (a) CN‒ and (b) SO32‒.

(a)

Interpretation Introduction

Interpretation:

The formal charge for each atom present in given CN- should be determined.

Concept Introduction:

Formal charge (FC): The charge assigned to an atom in a molecule, irrespective of relative electro negativity by thinking that electrons in all chemical bonds are shared equally among atoms.

Formal charge of an atom can be determined by the given formula.

Formalcharge(FC)=(numberofvalenceelectroninatom)[(numberofnon-bondingelectrons)+12(numberof bondingelectrons)]

Explanation

Given: CN-

Formal charge of Carbon atom can be determined by the given formula.

Formalcharge(FC)=(numberofvalenceelectroninatom)[(numberofnon-bondingelectrons)+12(numberof bonding

(b)

Interpretation Introduction

Interpretation:

The formal charge for each atom present in given SO32- should be determined.

Concept Introduction:

Formal charge (FC): The charge assigned to an atom in a molecule, irrespective of relative electro negativity by thinking that electrons in all chemical bonds are shared equally among atoms.

Formal charge of an atom can be determined by the given formula.

Formalcharge(FC)=(numberofvalenceelectroninatom)[(numberofnon-bondingelectrons)+12(numberof bondingelectrons)]

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