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Homework Help: Characteristic Property of Substances (mass, volume, and density)

  1. Sep 27, 2009 #1
    1. The problem statement, all variables and given/known data
    A characteristic property is a property that can be used to help identify a substance since it is the same for all samples of the substance. We have now studied mass, volume and density. Which of these is a characteristic property of substances? Explain.

    2. Relevant equations

    3. The attempt at a solution
    I think it is density, but I am not sure why. Thank you for helping me.
  2. jcsd
  3. Sep 27, 2009 #2
    You are correct in saying density is a characteristic property of material.

    Density ([tex]\rho[/tex]) = mass (m)/volume (V)

    so the density is a ratio of a material's mass to it's volume.

    Example: Water
    If you have 1L of water it would weight 1000g (1kg)

    If you had 1m3 of water it would weigh 1,000,000 g (1000 kg)

    Even though the weight and the volume of these 2 amounts of water are different, the density of them both is still 1 g/cm3 or 1000 kg/m3 (Those the same value with different units)

    So the density doesn't change for any given material and therefore that makes it a characteristic property of the material.

    I hope this helps you!

  4. Jan 31, 2011 #3
    thank you kind of... It didnt really help... But thanks I love youu

    -I <3 science....<333333:!!)
  5. Jan 31, 2011 #4
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