Chapter 4, Problem 45A

(a)

Interpretation Introduction

Interpretation: The given compound is to be named.

Concept introduction:

Ionic compounds are compounds that are made up of ions. They lose or gain atoms to give a positive or negative charge.

Answer to Problem 45A

The compound name is iron(III) acetate.

Explanation of Solution

Compound	Ions present	Ions name	Compound name
$\text{Fe}{\left({\text{C}}_{\text{2}}{\text{H}}_{\text{3}}{\text{O}}_{\text{2}}\right)}_{\text{3}}$	${\text{Fe}}^{\text{3+}}$ and ${\text{C}}_{\text{2}}{\text{H}}_{\text{3}}{\text{O}}_{\text{2}}{}^{-}$	Iron(III) and acetate	Iron(III) acetate

  $\text{Fe}{\left({\text{C}}_{\text{2}}{\text{H}}_{\text{3}}{\text{O}}_{\text{2}}\right)}_{\text{3}}$ contains ferric ion ( ${\text{Fe}}^{\text{3+}}$ ) or iron (III) which is a trivalent cation and acetate ion ( ${\text{C}}_{\text{2}}{\text{H}}_{\text{3}}{\text{O}}_{\text{2}}{}^{-}$ ) is a monovalent anion. So the name is ferric acetate or iron (III) acetate.

(b)

Interpretation Introduction

Interpretation: The given compound is to be named.

Concept introduction:

Ionic compounds are compounds that are made up of ions. They lose or gain atoms to give a positive or negative charge.

Answer to Problem 45A

The compound name is bromine monofluoride.

Explanation of Solution

Compound	Ions present	Ions name	Compound name
$\text{BrF}$	Br+ and ${\text{F}}^{\text{-}}$	Bromine and fluoride	Bromine monofluoride

  $\text{BrF}$ contains bromine(I) cation and fluoride ( ${\text{F}}^{\text{-}}$ ) anion. Both are monovalent ions. The name is bromine monofluoride.

(c)

Interpretation Introduction

Interpretation: The given compound is to be named.

Concept introduction:

Ionic compounds are compounds that are made up of ions. They lose or gain atoms to give a positive or negative charge.

Answer to Problem 45A

The compound name is potassium peroxide.

Explanation of Solution

Compound	Ions present	Ions name	Compound name
${\text{K}}_{\text{2}}{\text{O}}_{\text{2}}$	2   ${\text{K}}^{\text{+}}$ and O22-	Potassium and peroxide ion	Potassium peroxide

  ${\text{K}}_{\text{2}}{\text{O}}_{\text{2}}$ contains two potassium ( ${\text{K}}^{\text{+}}$ ) ions and one peroxide ion (O₂^2-). The name is potassium peroxide.

(d)

Interpretation Introduction

Interpretation: The given compound is to be named.

Concept introduction: Ionic compounds are compounds that are made up of ions. They lose or gain atoms to give a positive or negative charge.

Answer to Problem 45A

The compound name is silicon tetrabromide.

Explanation of Solution

Compound	Ions present	Ions name	Compound name
${\text{SiBr}}_4$	${\text{Si}}^{\text{4+}}$ and ${\text{Br}}^{-}$	Silicon and bromide ion	Silicon tetrabromide

  ${\text{SiBr}}_4$ contains one silicon cation ( ${\text{Si}}^{\text{4+}}$ ) which is a tetravalent cation and four bromide ion ( ${\text{Br}}^{-}$ ). The name of the compound is silicon tetrabromide.

(e)

Interpretation Introduction

Interpretation: The given compound is to be named.

Concept introduction: Ionic compounds are compounds that are made up of ions. They lose or gain atoms to give a positive or negative charge.

Answer to Problem 45A

The compound name is copper(II) permanganate.

Explanation of Solution

Compound	Ions present	Ions name	Compound name
$\text{Cu}{\left({\text{MnO}}_{\text{4}}\right)}_{\text{2}}$	${\text{Cu}}^{\text{2+}}$ and ${\text{MnO}}_4{}^{-}$	Copper(II) and permanganate	Copper(II) permanganate

  $\text{Cu}{\left({\text{MnO}}_{\text{4}}\right)}_{\text{2}}$ contains one copper ion ( ${\text{Cu}}^{\text{2+}}$ ) which is a divalent cation and two permanganate ion ( ${\text{MnO}}_4{}^{-}$ ). The name of the compound is copper (II) permanganate.