Chapter 4.2, Problem 4.7PP

Interpretation Introduction

Interpretation:

The formula mass and molar mass of ammonia, ${\text{NH}}_{\text{3}}$ has to be calculated.

Concept Introduction:

Formula mass:

Formula mass of a compound is the sum of the atomic masses of all atoms in the compound.  It is expressed in $\text{amu}$.

Molar mass:

Molar mass is the mass (in grams) of one mole of a substance.  It is expressed in $\text{g/mol}$.

The molar mass of compound is numerically equal to the formula mass in $\text{amu}\text{.}$