Chapter 7, Problem 7PE

(a)

Interpretation Introduction

Interpretation:

The number of molecules $\text{2}\text{.5}\text{mol}{\text{S}}_{\text{8}}$ has to be given.

(b)

Interpretation Introduction

Interpretation:

The number of molecules $\text{7}\text{.35}\text{mol}{\text{NH}}_{\text{3}}$ has to be given.

(c)

Interpretation Introduction

Interpretation:

The number of molecules $\text{17}\text{.5}\text{g}{\text{C}}_{\text{2}}{\text{H}}_{\text{5}}\text{OH}$ has to be given.

(d)

Interpretation Introduction

Interpretation:

The number of molecules $\text{225}\text{g}{\text{Cl}}_{\text{2}}$ has to be given.