Question

What is the molecular mass of Nitrogen?

Answer 1

Step 1. Molecular mass

• Molecular mass or molecular weight is the mass of a molecule.
• It is calculated as the sum of the atomic weights of each constituent element multiplied by the number of atoms of that element in the molecular formula.

Step 2. The molecular formula for nitrogen

• The molecular formula of nitrogen is ${\mathrm{N}}_2$
• The molecular mass of nitrogen =$2\times \text{Atomic mass of}\text{N}$

Step 3. Calculation of molecular mass of nitrogen

The molecular mass of nitrogen =$\left(2\times 14.01\right)\text{u}$

=$28.02\text{u}$

Hence, the molecular mass of nitrogen is $28.02\text{u}$.