Saturday

September 20, 2014

September 20, 2014

Posted by **kLb** on Sunday, February 20, 2011 at 11:04pm.

-kay so ive tried this one like a million times & i cant seem to get the right answer so pls talk me through the steps. like i know the equation is V1/T1=V2/T2 (volume & temp) & all it is is plugging in #s but im not getting the right answer !!! HELP. Like i even converted celsius to Kelvin and thats not workin. cos i have an answer sheet but doesnt shw us how.

so this is what igot

338k x 4.22L/3.87L=368-273

then i get 95 degress celsius.

& the book answer says 37 degres celsius. ): what am i doing wrong !

- Chemistry -
**DrBob222**, Monday, February 21, 2011 at 12:51am(V1/T1) = (V2/T2)

(4.22/338) = (3.87/T2)

Cross multiply.

4.22T2 = 338*3.87

T2 = 338*3.87/4.22 = 309.966 K

309.966-273 = 36.966 which rounds to 37.0 to three significant figures. You didn't show all of your work so I don't know if you substituted correctly (or not) or if the trouble is in the algebra. You should know your answer is wrong, however, BECAUSE if the volume goes down the temperature must go down (Charles' Law). You have the temperature going up.

**Answer this Question**

**Related Questions**

Chemistry - A gas at 65 degrees Celsius occupies 4.22L. At what Celsius ...

Chemistry - If a gas at 1.2 atm of pressure and 22.0 degrees of Celsius occupies...

Chemistry - If a gas at 1.2 atm of pressure and 22.0 degrees of Celsius occupies...

Chemistry - 1. Calculate the number of molecules in a deep breath of air whose ...

Chem hw! - 1. What pressure would be needed to compress 25.1 mL of hydrogen at 1...

Chem hw! - 1. What pressure would be needed to compress 25.1 mL of hydrogen at 1...

sciencee - 1. What pressure would be needed to compress 25.1 mL of hydrogen at 1...

Physics (Please help!!!) - 1) If a 10. m3 volume of air (acting as an ideal gas...

Chemistry 3A - a sample of methan gas, CH4, occupies 4.50L at a temp of 20.0 ...

Chem II - A sample of gas at 38 degrees Celsius occupies a volume of 2.97 L and ...