chemistry question help

Question

A sample of nitrogen gas at 0.855 atm is compressed to a new volume of 600 mL and now has a pressure of 827 mm Hg. What was the original volume in liters if the temperature remained 328.2^oC the entire time?

Answer 1

Hello, Molly,

As in my earlier responses, rearrange the gas laws equation to solve for V1.

V1 = V2(P2/P1)(T1/T2)

Convert C into K by adding 273. The units of pressure don't match. One needs to be converted so that the units match. I chose to substitute 1.088 atm for 827 mmHg.

Do the calculations after taking a guess on what you'd expect. Temperature has no impact, so it is going to depend on the ratio of the two pressures. The pressure almost doubles, so I'd guess the original volume was twice the volume under higher pressure.

I wound up with 764 ml. Close.

Bob