Question

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

Answer 1

The molar volume of an Ideal gas at `"STP"` is `22.4*L*mol^-1`. Dioxygen should have a volume approaching `50*L`

Explanation:

So to your problem, `"Volume at STP"` `=` `2.3*cancel(mol)xx22.4*L*cancel(mol^-1)=??L`