The molecular weight of nitrogen (N2) is approximately 28.02 g/mol. This value is calculated by adding the atomic weights of the two nitrogen atoms in the molecule. The atomic weight of a single nitrogen atom is about 14.01 g/mol. Since nitrogen exists as a diatomic molecule (N2), we multiply the atomic weight by 2 to get the molecular weight.
Here’s the calculation:
Atomic weight of nitrogen (N) = 14.01 g/mol
Molecular weight of nitrogen (N2) = 2 × 14.01 g/mol = 28.02 g/mol
This molecular weight is crucial in various scientific calculations, including stoichiometry, gas laws, and chemical reactions.