Tuesday

September 23, 2014

September 23, 2014

Posted by **Eric** on Sunday, September 27, 2009 at 11:56pm.

I know I use PV=nRT, but what numbers do I plug in and why couldn't I use p1v1/t1=p2v2/t2?

- Chemistry -
**DrBob222**, Monday, September 28, 2009 at 12:12amYou may use the other formula if it's easier for you and you plug in the right numbers. DON'T use 5.0 L as V2 and you must change one of the pressures to make the same unit (150 atm must be changed to mm or 755 mm must be changed to atm). And T must be in Kelvin.

For PV = nRT

150 atm = P

V = 22 L

n = ??

R = 0.08205

T = 31 + 273 = 304.

Then use PV = nRT again.

P = 755 mm = 755/760 = ?? atm.

V = solve for this.

n = use from calculation above.

R = same constant as above.

T = 22 + 273 = 295

Then use the volume from this last calculation to determine how many 5.0 L balloons can be filled.

**Answer this Question**

**Related Questions**

Chemistry - You have a 22L cylinder of helium at a pressure of 150atm and a ...

General Chemistry - A cylinder with a movable piston contains 2.00g of helium,He...

Chemestry - A cylinder with a movable piston contains 2.00 of helium, , at room ...

CHEM - A cylinder with a movable piston contains 2.00 of helium, , at room ...

college chemisrty - A cylinder with a movable piston contains 2.00 of helium, , ...

chm - A cylinder with a movable piston contains 2.00 of helium,He, at room ...

chemistry - A helium-filled balloon of the type used in long-distance flying ...

Chemistry - a cylinder of helium has a volume of 8.0 L. The pressure of the gas ...

Physics - A clown at a birthday party has brought along a helium cylinder, with ...

Chemistry 140A - A gas cylinder containing 6.38 mol of neon has a pressure of ...