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Please help with this i have a test tonight

  1. Mar 18, 2010 #1
    Calculate the pressure exerted by 0.3000 mole of He in 0.2000L container at -25.0^o C

    a) Using the ideal gas law
    b) Using van der Waal's equation (a=0.0341 atmL^2/mol^2 and b = 0.0237 Lmol)

    i have no idea how to do this problem?? please helppp
  2. jcsd
  3. Mar 18, 2010 #2


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    Start by writing down the two gas laws you are given. Try to understand what the variables in those equations mean and what variables you are given.
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