How do you calculate molar volume of a gas at STP?

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Answer 1 · 2014-03-05T22:23:08

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

#P V = n R T #
solves to
#V = (n R T) / P#

#V = (1 cancel(mol) (0.0821 (cancel(atm)L))/(cancel(mol) cancelK) 273cancelK)/(1cancel(atm))#

V = 22.41 L of gas @ STP

I hope this was helpful.
SMARTERTEACHER