Question

What is the mass of $1\mathrm{mole}$ of nitrogen atoms?

Answer 1

Step 1: Given information

• Number of moles of Nitrogen $\left(\mathrm{N}\right)$ atoms is $1\mathrm{mole}$.

Step 2: Define mole

• A mole is the mass of a substance containing the same number of fundamental units as there are atoms in exactly $12\mathrm{g}\mathrm{of}12\mathrm{C}$.
• One mole is equal to the relative atomic mass or atomic weight of an atom.

Step 3: Determine the mass of $\mathbf{1}$ mole of nitrogen atoms

• The atomic mass of Nitrogen atom is $14\mathrm{g}$.
• Mass of $1\mathrm{mole}$ of nitrogen atoms is equal to the atomic mass of nitrogen atoms.
• Mass of $1\mathrm{mole}$of nitrogen atoms $=14\mathrm{g}$

Therefore, the mass of $\mathbf{1}$ mole of nitrogen atoms is $\mathbf{14}\mathbf{}\mathbf{g}$.