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Homework Help: Calculate the molar mass of a gas that has a density of 0.6536 g/L at 37C and 787 tor

  1. Jul 23, 2010 #1
    Calculate the molar mass of a gas that has a density of 0.6536 g/L at 37C and 787 torr. What do you think the?

    My attempt:

    I used n= PV/RT and calculated the number of moles to be 16.0548g/mol.

    The second part is where I am confused. Anyone help?
     
  2. jcsd
  3. Jul 23, 2010 #2

    chemisttree

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    Re: Calculate the molar mass of a gas that has a density of 0.6536 g/L at 37C and 787

    Second part? Eh?
     
  4. Jul 23, 2010 #3
    Re: Calculate the molar mass of a gas that has a density of 0.6536 g/L at 37C and 787

    oops didnt finish the last sentence. It is "What do you think you think the molecular formula of the gas is?


    I think its CH4 because thats the only molecule I can find that has a MM close to 16g.
     
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