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chemistry

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If 0.385 g of gas occupies a volume of 200 mL at -73 oC and 750 torr, what is the molecular mass of the gas?

a) 21.4
b) 32.0
c) 44.0
d) 48.0

Someone can help me this answer please..?

  • chemistry -

    PV = nRT
    Calculate n = number of moles.
    Then n = grams/molar mass.
    Calculate molar mass.

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