One more Chem

One more A helium balloon has a volume of 2.30 L at 23.5 deg C and a pressure of 1.00 atm at sea level. the ballon is released and floats upward. At a certain height the atmospheric pressure is 0.810 atm and the temp is 12. C. What is the volume of the balloon? ????? ???

(P1V1/T1 = (P2V2)/T2.
V2 is the unknown. You know all the others.
Don't forget to change T to Kelvin.
K = 273 + C.


Is the answer 2.84??

Close but that isn't the answer I get. Post your work and I'll check it.

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