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Homework Help: Help with 2 questions related to gasses

  1. Oct 3, 2012 #1
    1. The problem statement, all variables and given/known data

    1.) A 500ml flask at 27 degrees Celsius contains He,N2 and Ne the total Pressure is 0.76atm, while Phe= 0.18 atm and Pne= 0.28 atm. Determine the no of moles of N2 in Flask.

    2.) Determine the density (g/l) of a gas with a molar mass of 16.0 g/mol at a temperature of 80 degrees Celsius and a pressure of 1.5atm.

    I thank you guys for the help, please do show your work I really appreciate it.

    2. Relevant equations

    3. The attempt at a solution

    I can't seem to figure out what I am doing wrong in these questions I keep getting the wrong answer every time I check my answer it appears to be wrong. Can someone please show me how it's done with the solution so I can see where my mistake was?
  2. jcsd
  3. Oct 4, 2012 #2


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    Science Advisor
    Homework Helper
    Gold Member

    Link, you have it backwards.

    Show us YOUR work... or else.
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