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A 1.50mol sample of helium at a certain temperature and pressure has a volume of 31.4L. A second sample of helium at the same temp and pressure has a volume of 42.2L. How many moles of Helium are in the second sample?

  • Chemistry -

    well, PV=nRT so

    V/n=RT/P so if RT/P remains constant


    and you are solving for n2.

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