How do you find the molar volume of hydrogen gas?

1 Answer
May 15, 2014

Using the Ideal Gas Law, you would find the volume of 1 mole of a gas at Standard Temperature and Pressure (STP).

STP = 1 atm of pressure and 273 K for temperature

P = 1 atm
V = ???
n = 1 mole
R = 0.0821 atm L/mol K
K = 273 K

PV=nRT
solves to
V=nRTP

V=1mol0.0821(atmL)molK273K1atm

V = 22.41 L of gas @ STP
This is also known as Avogadro's number for molar volume of a gas @ STP

I hope this was helpful.
SMARTERTEACHER