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chem/plz/check work studying for a final

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what is the volume occupied by 16.0g ethane gas (C2H6) at 720 Torr and 18C?


conversion of mol:
16.0g C2H6 X 1mol C2H6/30.07g C2H6= .53mol C2H6

V= .53 mol(0.0821 L*atm/mol*K)(291)K /
720 Torr (1 atm/760Torr)

V= 13.5 L

  • chem/plz/check work studying for a final -

    Here is a quick check. You have a half mole at near stp. About 11 liters. But in reality, your pressure is about ten percent lower than stp, so volume about 12 liters, and temp is about 5 percent higher, so volume is about 13 liters.

    I would go with your answer.

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