Chapter 18, Problem 18.90SP

Interpretation Introduction

Interpretation:

Mass percent of water in ${\text{CaSO}}_{\text{4}}\text{.}\frac{\text{1}}{\text{2}}{\text{H}}_{\text{2}}\text{O}$ has to be determined.

Concept Introduction:

The mass percentage or weight percentage of compound can be calculated by taking the calculated mass of the substance to the total mass of the sample whole multiplied by 100.

The mass percent can be calculated with formula,

$Masspercent(inpercentage)=\frac{Calculatedmass(ingrams)}{totalmass(ingrams)}\times 100$