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Please Help with density!

  1. Apr 20, 2009 #1
    A 100 cm^3 container has 4 g of an ideal gas in it at 250 kPa. If the volume is changed to 50 cm^3 and the temperature remains constant, what is the new density in kg/m^3.

    Any help would be greatly appreciated to help me understand! Thanks
     
  2. jcsd
  3. Apr 20, 2009 #2

    mgb_phys

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    Density is mass/volume
    What have you changed, what stays the same?
     
  4. Apr 20, 2009 #3

    djeitnstine

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    Gold Member

    PV=nRT
     
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