A steel container of oxygen has a volume of 20.0 L at 22 C @35 atm. What is the volume @ STP? How many mol of oxygen are in the container?

Answer 1

I would use P1V1/T1 = P2V2/T2 to convert from the conditions listed to STP. Then I would use PV = nRT to determine moles.

Answer 2

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?

Answer 3

Sure you do. STP is 1 atm for P and 273 Kelvin for T. Don't forget to use Kelvin for the other temperature.

Answer 4

2.37 STP??

Answer 5

700 ?

Answer 6

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.

Answer 7

WTF???? Still cant figure it out...

Answer 8

756.4 ?

Answer 9

.00869?

Answer 10

35*20/295=2.372
2.372/273= .00869?

Answer 11

18.50?

Answer 12

647.79 ??

Answer 13

I got 647.79 too, is that correct