Chapter 6, Problem 21PE

(a)

Interpretation Introduction

Interpretation:

The chemical formula of silver sulfite has to be written.

Answer to Problem 21PE

The chemical formula of silver sulfite is ${\text{Ag}}_{\text{2}}{\text{SO}}_{\text{3}}\text{.}$

Explanation of Solution

In silver sulfite, the cation is silver (I) $\left({\text{Ag}}^{\text{+}}\right)$ and the anion is sulfite $\left({\text{SO}}_{\text{3}}{}^{\text{2-}}\right)\text{.}$

The chemical formula of silver sulfite is ${\text{Ag}}_{\text{2}}{\text{SO}}_{\text{3}}\text{.}$

(b)

Interpretation Introduction

Interpretation:

The chemical formula of cobalt (II) bromide has to be written.

Answer to Problem 21PE

The chemical formula of cobalt (II) bromide is ${\text{CoBr}}_{\text{2}}\text{.}$

Explanation of Solution

In cobalt (II) bromide, the cation is cobalt (II) $\left({\text{Co}}^{\text{2+}}\right)$ and the anion is bromide $\left({\text{Br}}^{\text{-}}\right)\text{.}$

The chemical formula of cobalt (II) bromide is ${\text{CoBr}}_{\text{2}}\text{.}$

(c)

Interpretation Introduction

Interpretation:

The chemical formula of tin (II) hydroxide has to be written.

Answer to Problem 21PE

The chemical formula of tin (II) hydroxide is $\text{Sn}{\left(\text{OH}\right)}_{\text{2}}\text{.}$

Explanation of Solution

In tin (II) hydroxide, the cation is tin (II) $\left({\text{Sn}}^{\text{2+}}\right)$ and the anion is hydroxide $\left({\text{OH}}^{\text{-}}\right)\text{.}$

The chemical formula of tin (II) hydroxide is $\text{Sn}{\left(\text{OH}\right)}_{\text{2}}\text{.}$

(d)

Interpretation Introduction

Interpretation:

The chemical formula of aluminum sulfate has to be written.

Answer to Problem 21PE

The chemical formula of aluminum sulfate is ${\text{Al}}_{\text{2}}{\text{SO}}_{\text{3}}\text{.}$

Explanation of Solution

In aluminum sulfate, the cation is aluminum $\left({\text{Al}}^{\text{3+}}\right)$ and the anion is sulfate $\left({\text{SO}}_{\text{4}}{}^{\text{2-}}\right)\text{.}$

The chemical formula of aluminum sulfate is ${\text{Al}}_{\text{2}}{\text{SO}}_{\text{3}}\text{.}$

(e)

Interpretation Introduction

Interpretation:

The chemical formula of lead (II) chloride has to be written.

Answer to Problem 21PE

The chemical formula of lead (II) chloride is ${\text{PbCl}}_{\text{2}}\text{.}$

Explanation of Solution

In lead (II) chloride, the cation is lead (II) ${\text{Pb}}^{\text{2+}}$ and the anion is chloride $\left({\text{Cl}}^{\text{-}}\right)\text{.}$

The chemical formula of lead (II) chloride is ${\text{PbCl}}_{\text{2}}\text{.}$

(f)

Interpretation Introduction

Interpretation:

The chemical formula of ammonium carbonate has to be written.

Answer to Problem 21PE

The chemical formula of ammonium carbonate is ${\left({\text{NH}}_{\text{4}}\right)}_{\text{2}}{\text{CO}}_{\text{3}}\text{.}$

Explanation of Solution

In ammonium carbonate, the cation is ammonium $\left({\text{NH}}_{\text{4}}{}^{\text{+}}\right)$ and the anion is carbonate $\left({\text{CO}}_{\text{3}}{}^{\text{2-}}\right)\text{.}$

The chemical formula of ammonium carbonate is ${\left({\text{NH}}_{\text{4}}\right)}_{\text{2}}{\text{CO}}_{\text{3}}\text{.}$

(g)

Interpretation Introduction

Interpretation:

The chemical formula of chromium (III) oxide has to be written.

Answer to Problem 21PE

The chemical formula of chromium (III) oxide is ${\text{Cr}}_{\text{2}}{\text{O}}_{\text{3}}\text{.}$

Explanation of Solution

In chromium (III) oxide, the cation is chromium (III) $\left({\text{Cr}}^{\text{3+}}\right)$ and the anion is oxide $\left({\text{O}}^{\text{2-}}\right)\text{.}$

The chemical formula of chromium (III) oxide is ${\text{Cr}}_{\text{2}}{\text{O}}_{\text{3}}\text{.}$

(h)

Interpretation Introduction

Interpretation:

The chemical formula of copper (II) chloride has to be written.

Answer to Problem 21PE

The chemical formula of copper (II) chloride is ${\text{CuCl}}_{\text{2}}\text{.}$

Explanation of Solution

In copper (II) chloride, the cation is copper (II) $\left({\text{Cu}}^{\text{2+}}\right)$ and the anion is chloride $\left({\text{Cl}}^{\text{-}}\right)\text{.}$

The chemical formula of copper (II) chloride is ${\text{CuCl}}_{\text{2}}\text{.}$

(i)

Interpretation Introduction

Interpretation:

The chemical formula of potassium permanganate has to be written.

Answer to Problem 21PE

The chemical formula of potassium permanganate is ${\text{KMnO}}_{\text{4}}\text{.}$

Explanation of Solution

In potassium permanganate, the cation is potassium $\left({\text{K}}^{\text{+}}\right)$ and the anion is ${\text{MnO}}_{\text{4}}{}^{\text{-}}\text{.}$

The chemical formula of potassium permanganate is ${\text{KMnO}}_{\text{4}}\text{.}$

(j)

Interpretation Introduction

Interpretation:

The chemical formula of arsenic (V) sulfite has to be written.

Answer to Problem 21PE

The chemical formula of arsenic (V) sulfite is ${\text{As}}_{\text{3}}{\left({\text{SO}}_{\text{2}}\right)}_{\text{5}}\text{.}$

Explanation of Solution

In arsenic (V) sulfite, the cation is arsenic (V) $\left({\text{As}}^{\text{5+}}\right)$ and the anion is sulfite $\left({\text{SO}}_{\text{3}}{}^{\text{2-}}\right)\text{.}$

The chemical formula of arsenic (V) sulfite is ${\text{As}}_{\text{3}}{\left({\text{SO}}_{\text{2}}\right)}_{\text{5}}\text{.}$

(k)

Interpretation Introduction

Interpretation:

The chemical formula of sodium peroxide has to be written.

Answer to Problem 21PE

The chemical formula of sodium peroxide is ${\text{Na}}_{\text{2}}{\text{O}}_{\text{2}}\text{.}$

Explanation of Solution

In sodium peroxide, the cation is sodium $\left({\text{Na}}^{\text{+}}\right)$ and the anion is peroxide $\left({\text{O}}_{\text{2}}{}^{\text{2-}}\right)\text{.}$

The chemical formula of sodium peroxide is ${\text{Na}}_{\text{2}}{\text{O}}_{\text{2}}\text{.}$

(l)

Interpretation Introduction

Interpretation:

The chemical formula of iron (II) sulfate has to be written.

Answer to Problem 21PE

The chemical formula of iron (II) sulfate is ${\text{FeSO}}_{\text{4}}\text{.}$

Explanation of Solution

In iron (II) sulfate, the cation is iron (II) $\left({\text{Fe}}^{\text{2+}}\right)$ and the anion is sulfate $\left({\text{SO}}_{\text{4}}{}^{\text{2-}}\right)\text{.}$

The chemical formula of iron (II) sulfate is ${\text{FeSO}}_{\text{4}}\text{.}$

(m)

Interpretation Introduction

Interpretation:

The chemical formula of potassium dichromate has to be written.

Answer to Problem 21PE

The chemical formula of potassium dichromate is ${\text{K}}_{\text{2}}{\text{Cr}}_{\text{2}}{\text{O}}_{\text{7}}\text{.}$

Explanation of Solution

In potassium dichromate, the cation is potassium $\left({\text{K}}^{\text{+}}\right)$ and the anion is dichromate $\left({\text{Cr}}_{\text{2}}{\text{O}}_{\text{7}}{}^{\text{2-}}\right)\text{.}$

The chemical formula of potassium dichromate is ${\text{K}}_{\text{2}}{\text{Cr}}_{\text{2}}{\text{O}}_{\text{7}}\text{.}$

(n)

Interpretation Introduction

Interpretation:

The chemical formula of bismuth (III) chromate has to be written.

Answer to Problem 21PE

The chemical formula of bismuth (III) chromate is ${\text{Bi}}_{\text{2}}{\left({\text{CrO}}_{\text{4}}\right)}_{\text{3}}\text{.}$

Explanation of Solution

In bismuth (III) chromate, the cation is bismuth (III) $\left({\text{Bi}}^{\text{3+}}\right)$ and the anion is chromate $\left({\text{CrO}}_{\text{4}}{}^{\text{2-}}\right)\text{.}$

The chemical formula of bismuth (III) chromate is ${\text{Bi}}_{\text{2}}{\left({\text{CrO}}_{\text{4}}\right)}_{\text{3}}\text{.}$