Can anyone explain how to work this problem.?

Consider the three flasks in the diagram below. When the stopcocks are closed, the three flasks have the following volume and pressure values: He 1.00 L at 100. torr, Ne 1.00 L at 0.527 atm, Ar 2.00 L at 49.0 kPa. Assuming the connecting tubes have negligible volume, what is the partial pressure of each gas and the total pressure after all the stopcocks are opened?

Can't figure this one out. Any help would be greatly appreciated!

I see 9 flasks in the picture, not 3 ;)

Anyway,

See if this will help you figure it out :)

http://answers.yahoo.com/question/index ... 302AAw2ima.

That's the question i posted haha

Taking chemistry so you can cut coke better in the hood?

No....i have your mom to do that for me.....

No kano.....i have your mom for that.

Reborn thats the question i posted on yahoo haha

I was wondering if someone could work out the first partial pressure just so i can see the numbers. Because when i tried what the answer said i kept gettin the wrong answer.

Someone answered!

1) Use the ideal gas law (PV=nRT) to calculate the number of moles of each gas (assume temp to be 25C = 298 K). Make sure that your constant, R, is in the proper units, or convert the pressure quantities given into the appropriate units.
2) Calculate the total pressure of the system after the stopcocks are opened using the ideal gas law again, using the total volume (volume of all three flasks + whatever else is connected; I can't see the diagram, so I don't know if the flasks are just interconnected, or if there is a large trap that they all empty into it). Using the total pressure, you can calculate the partial pressures based on the molar fractions (since they are ideal gases). Basically, the equation simplifies to say that the partial pressure / total pressure = number of moles of gas / total number of moles. The second term is the molar fraction, and can be calculated (it will be a decimal <1.00). Divide this number by the total pressure to give you the partial pressure for that element. Repeat for the other elements.

uggg chemistry yet I kno how to do that problem it was on one of my test last semester. It's just like he said or she. If you ever really get stuck tolken always try and convert to mols because doing that will sometimes trigger your memory to get where you need to go. Only way I passed chemistry lol convert to mols :D

I LOVE STOP C*CK!

Yea i gave up on this shit. It's starting to frustrate me.