What is the pressure (in atm) in a 10 liter tank containing 5 kg of oxygen at 300 degrees K? I think this requires the equation PV=nRT, but I can't seem to figure it out.
Yes, you are correct. It involves the ideal gas law, PV=nRT.
What do you know?
V = 10 L
mass = 5 kg = 5000 g
Convert this to ...