Chapter 14, Problem 11PE

(a)

Interpretation Introduction

Interpretation:

Grams of solute present in $25\text{ g}$ of $7.5\text{ \%}$ by mass solution of ${\text{CaSO}}_4$ have to be determined.

Concept Introduction:

Mass percent is concentration term used to determine concentration of solution in terms of solute percent in particular mass of solution. Expression for mass percent is as follows:

  $\text{Mass percent}=\left(\frac{\text{Mass of solute}}{\text{Mass of solution}}\right)\left(100\right)$

(b)

Interpretation Introduction

Interpretation:

Grams of solvent present in $25\text{ g}$ of $7.5\text{ \%}$ by mass solution of ${\text{CaSO}}_4$ have to be determined.

Concept Introduction:

Refer to part (a).