# At STP, what is the volume of 4.50 moles of nitrogen gas?

The molar volume of an Ideal gas at $\text{STP}$ is $22.414 \cdot L$.
Assuming, reasonably, that dinitrogen behaves as an Ideal gas, its volume is $4.50 \cdot \cancel{m o l} \times 22.414 \cdot L \cdot \cancel{m o {l}^{-} 1}$ $\cong$ $100 \cdot L$