A sealed balloon is filled with 1.00 L of He gas at 23 deg C and 1.00 atm. The balloon rises to a point in the atmosphere where the pressure is 220 torr and the temperature is -31 deg C. What is the final volume of the balloon after it reaches an altitude where the pressure is 220 torr?(adsbygoogle = window.adsbygoogle || []).push({});

If I should use the Ideal Gas Law, Pv= nRT, how do I find the number of moles?

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# Homework Help: Ideal Gas Law Question

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