# Question #2f5b5

##### 1 Answer

Oct 21, 2014

Use the fact that a mole of any gas occupies a volume of 24L at room temperature and pressure.

Here is an example: "What is the volume occupied by 2.2g of

The

so 44g occupies 24L

so 1g occupies 24/44 = 0.5 L

So 2.2g occupies 0.5 x 2.2 = 1.1L

If we are not under standard conditions you may to use The Ideal Gas Equation:

Where P = pressure

V = volume

T = the absolute temperature

n = the no. of moles

R = the gas constant = 8.31J/K/mol