I would use P1V1/T1 = P2V2/T2 to convert from the conditions listed to STP. Then I would use PV = nRT to determine moles.
Not sure on this, I get that whole formula but I don`t have a P2V2/T2 to use in the equation. And do I need to change the 35 atm somehow by using the 760mmHG?
Sure you do. STP is 1 atm for P and 273 Kelvin for T. Don't forget to use Kelvin for the other temperature.
2.37 STP??
700 ?
P1 = 35 atm
V1 = 20.0 L
T1 = 22+273 = 295
P2 = 1 atm
V2 = ??
T2 = 273
(35*20/295) = (1*V2/273)
solve for V2.
It isn't 2.37 and it isn't 700.
