Chapter 1, Problem 1.11P

(a)

Interpretation Introduction

Interpretation:

The amount of perchloric acid present in $\text{100}\text{.0 g of 70}\text{.5 wt\%}$ aqueous perchloric acid has to be calculated.

Concept Introduction:

The percentage of a substance in a mixture or solution can be expressed as weight percent ($\text{wt\%}$):

    $\text{weight percent}\left(\text{wt\%}\right)\text{=}\frac{\text{mass}\text{of}\text{solute}}{\text{mass}\text{of}\text{total}\text{solution}}\text{×}\text{100}$

(b)

Interpretation Introduction

Interpretation:

The amount of water present in $\text{100g}$ of solution has to be calculated.

Concept Introduction:

Refer to part (a)

(c)

Interpretation Introduction

Interpretation:

The number of moles of perchloric acid present in $\text{100g}$ of solution has to be calculated.