Chapter 3, Problem 12PE

(a)

Interpretation Introduction

Interpretation:

The total number of atoms in the compound ${\text{CH}}_{\text{3}}{\text{CH}}_{\text{2}}\text{OH}$ has to be given.

Explanation of Solution

The name of the compound ${\text{CH}}_{\text{3}}{\text{CH}}_{\text{2}}\text{OH}$ is ethanol.

The number of carbon atoms in ${\text{CH}}_{\text{3}}{\text{CH}}_{\text{2}}\text{OH}$ is $\text{2}\text{.}$

The number of hydrogen atoms in ${\text{CH}}_{\text{3}}{\text{CH}}_{\text{2}}\text{OH}$ is $\text{6}\text{.}$

The number of oxygen atoms in ${\text{CH}}_{\text{3}}{\text{CH}}_{\text{2}}\text{OH}$ is $\text{1}\text{.}$

The total number of atoms in the compound ${\text{CH}}_{\text{3}}{\text{CH}}_{\text{2}}\text{OH}$ is $\text{9}\text{.}$

(b)

Interpretation Introduction

Interpretation:

The total number of atoms in the compound $\text{KAl}{\left({\text{SO}}_{\text{4}}\right)}_{\text{2}}$ has to be given.

Explanation of Solution

The name of the compound $\text{KAl}{\left({\text{SO}}_{\text{4}}\right)}_{\text{2}}$ is aluminum potassium sulfate

The number of aluminum atoms in $\text{KAl}{\left({\text{SO}}_{\text{4}}\right)}_{\text{2}}$ is $\text{1}\text{.}$

The number of potassium atoms in $\text{KAl}{\left({\text{SO}}_{\text{4}}\right)}_{\text{2}}$ is $\text{1}\text{.}$

The number of oxygen atoms in $\text{KAl}{\left({\text{SO}}_{\text{4}}\right)}_{\text{2}}$ is $\text{8}\text{.}$

The number of sulfur atoms in $\text{KAl}{\left({\text{SO}}_{\text{4}}\right)}_{\text{2}}$ is $\text{2}\text{.}$

The total number of atoms in the compound $\text{KAl}{\left({\text{SO}}_{\text{4}}\right)}_{\text{2}}$ is $\text{12}\text{.}$

(c)

Interpretation Introduction

Interpretation:

The total number of atoms in the compound ${\text{NH}}_{\text{4}}{\text{C}}_2{\text{H}}_{\text{3}}{\text{O}}_{\text{2}}$ has to be given.

Explanation of Solution

The name of the compound ${\text{NH}}_{\text{4}}{\text{C}}_2{\text{H}}_{\text{3}}{\text{O}}_{\text{2}}$ is ammonium acetate.

The number of hydrogen atoms in ${\text{NH}}_{\text{4}}{\text{C}}_2{\text{H}}_{\text{3}}{\text{O}}_{\text{2}}$ is $\text{7}\text{.}$

The number of nitrogen atoms in ${\text{NH}}_{\text{4}}{\text{C}}_2{\text{H}}_{\text{3}}{\text{O}}_{\text{2}}$ is $\text{1}\text{.}$

The number of oxygen atoms in ${\text{NH}}_{\text{4}}{\text{C}}_2{\text{H}}_{\text{3}}{\text{O}}_{\text{2}}$ is $\text{2}\text{.}$

The number of carbon atoms in ${\text{NH}}_{\text{4}}{\text{C}}_2{\text{H}}_{\text{3}}{\text{O}}_{\text{2}}$ is $\text{2}\text{.}$

The total number of atoms in the compound ${\text{NH}}_{\text{4}}{\text{C}}_2{\text{H}}_{\text{3}}{\text{O}}_{\text{2}}$ is $\text{12}\text{.}$

(d)

Interpretation Introduction

Interpretation:

The total number of atoms in the compound ${\text{C}}_{\text{6}}{\text{H}}_{\text{4}}{\text{Cl}}_{\text{2}}$ has to be given.

Explanation of Solution

The name of the compound ${\text{C}}_{\text{6}}{\text{H}}_{\text{4}}{\text{Cl}}_{\text{2}}$ is dichlorobenzene.

The number of carbon atoms in ${\text{C}}_{\text{6}}{\text{H}}_{\text{4}}{\text{Cl}}_{\text{2}}$ is $\text{6}\text{.}$

The number of hydrogen atoms in ${\text{C}}_{\text{6}}{\text{H}}_{\text{4}}{\text{Cl}}_{\text{2}}$ is $\text{4}\text{.}$

The number of chlorine atoms in ${\text{C}}_{\text{6}}{\text{H}}_{\text{4}}{\text{Cl}}_{\text{2}}$ is $\text{2}\text{.}$

The total number of atoms in the compound ${\text{C}}_{\text{6}}{\text{H}}_{\text{4}}{\text{Cl}}_{\text{2}}$ is $\text{12}\text{.}$