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sapingou WOW.com-Web Results Hw 6 > Act ities and Due Dates -CHEM 11-Spring 6 . EVANS Gradebook 05/10/2016 11:55 PM O 22.2/1005/10/2016 04:26 PM PintCalulatorPeriodic Table Map Aga filed weater baloon has a volume of 500 L atgrond leve, where the pressure is 7.60 × 10 mmHg and he temperature is 22.3 Ahr -763 and the pressure is 0.0570 atm what is re weather ballon's volume at the higher atitude? released, the balloon rises to an altitude where the temperature is Naber Previous O Previous 9 Check An wer O Check AnswerNextExit-, Next Exit

Explanation / Answer

PV=nRT problem. I am assuming that n stays constant for this expansion.
You will have to use the first set of conditions to solve for n, and then use that n to solve for your final volume. So:

V1= 50 L
P1=.1 atm (convert from mmHG to atm)
T1= 295.3 k (convert from celsius to kelvin by adding 273)
Solve for n:

n=(1 atm)(50 L) / (295.3 K)(.08206 L atm/ mol K)=2.063 mol

Now take your second set of conditions:
P2=.0670 atm
T2= 265.37 k
n=2.38 mol
Solve for V2:

V2= (2.063 mol)(.08206 L atm / mol K)(265.37 K) / (.067 atm)
= 670.51 L

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