Explanation:
It is known that number of moles of a substance equal to mass divided by its molar mass.
Mathematically, No. of moles = [tex]\frac{mass}{\text{molar mass}}[/tex]
It is given that no. of oles present are 27.2 mol and molar mass of N is 14 g/mol.
Therefore, calculate mass of N as follows.
No. of moles = [tex]\frac{mass}{\text{molar mass}}[/tex]
27.2 mol = [tex]\frac{mass}{14 g/mol}[/tex]
mass = 380.8 g
Thus, we can conclude that mass of N is 380.8 g.
