Answer to Question #140148 in General Chemistry for Javier

Question

What is the volume occupied by 28.0 g of oxygen, O2 at STP?

Answer 1

The volume is

$$V=nV_M,$$

where

$$n=\frac{m}{\Mu}.$$

Thus:

$$V=\frac{m}{\Mu} V_M=\frac{28}{16+16}22.4=28.5\text{ L}.$$