Gases are sold in large cylinders for laboratory use. What pressure in atmospheres will be exerted by 2500 g of oxygen gas (O2) when stored at 22°C in a 40.0 L cylinder?
Assuming near ideal gas behavior where
Rearranging the equation we have
V = 40.0 L
R = 0.0820575 L-atm/K-mol
T = 22'C = 295'K
n = (2500g/32.0 g/mol) = 78.125 moles of
P = 47.3atm