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Homework Help: Polystyrene and Styrofoam

  1. Feb 18, 2010 #1
    1. The problem statement, all variables and given/known data
    Devise and preform an experiment to determine what fraction of the volume of a sample of Styrofoam is air. We know that Styrofoam is made of Polystyrene with air bubbles. The mass is the same, the volume is different.


    2. Relevant equations
    Mass/Volume=Density


    3. The attempt at a solution

    Well I thought that If I find the density of both the samples (Polystyrene and the Styrofoam) and find the difference and divide it by the density of the Polystyrene I could find the fraction of air, but I'm not very sure.
     
  2. jcsd
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