Chapter 7, Problem 70E

Interpretation Introduction

Interpretation:

The number of molecules and atoms in $\text{85}\text{g}{\text{P}}_4$ is to be calculated.

Concept introduction:

Molar mass is the sum of the mass of each constituent element of a compound multiplied by the number of atoms of that element. The molar mass can be expressed as $\text{g}/\text{mol}$. The molecular formula of the compound represents the number of atoms of each constituent element.