Consider two flasks. What are the final partial pressure of H2 and N2 after the stopcock between the two flasks is opened? Assume the final volume is 3.00 L. What is the total pressure in torr?

Flask 1: 2.00 L H2, 475 torr
Flask 2: 1.00 L N2, 0.200 atm

Imagine two round flasks filled with gas that are connected to each other, with a stopcock in the middle.

3 answers

Pressure H2. Use P1V1=P2V2
Pressure N2. Use P1V1 = P2V2
Convert pN2 to torr. Add pH2 to pN2 to find Ptotal.

So is it 475torr/2L = P2/3L?

It's 317+50.7 torr = 368 torr