Posted by Thao on .
If the molar volume of an ideal gas is 22.4 L/mol, calculate the theoretical density of hydrogen gas at STP.
Not sure what formula to use with this question. Thanks.

Chemistry 
Thao,
I came up with this but not sure if it's right:
D = 1mol/22.4L x 2.02g/1mol = 0.0902g/L