Chapter 5, Problem 15SAQ

Interpretation Introduction

Interpretation: The formula mass for the compound, $CC{l}_2{F}_2$, is to be determined.

Concept introduction:

The commonly used terms molecular mass and molecular weight, have the same meaning as formula mass.

For any compound, the formula mass is the sum of the atomic masses of all the atoms in its chemical formula:

$\begin{array}{c}\text{Formula mass = }\left(\#\text{atoms of 1st element in chemical formula}\times \text{atomic mass of 1st element}\right)\\ +\left(\#\text{atoms of 2nd element in chemical formula}\times \text{atomic mass of 2nd element}\right)\\ +\mathrm{...}\end{array}$