# What volume will 2.3 moles of O_2 have at STP?

The molar volume of an Ideal gas at $\text{STP}$ is $22.4 \cdot L \cdot m o {l}^{-} 1$. Dioxygen should have a volume approaching $50 \cdot L$
So to your problem, $\text{Volume at STP}$ $=$ 2.3*cancel(mol)xx22.4*L*cancel(mol^-1)=??L