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Comparing mass ratios and 'proving the law of multiple proportions holds true'

  1. Oct 2, 2011 #1
    Compare the mass ratios of N2O3 and N2O5 and prove the law of multiple proportions holds true.


    I'm having trouble understanding what the question is asking for. So far, I've done this:



    N2O3:

    N: 14g * 2 = 28g

    O: 16g * 3 = 48g


    N2O5:

    N: 14g * 2 = 28g

    O: 16g * 5 = 80g


    28g N * 80g O = 5
    48g O * 28g N = 3

    I'm not sure what ratio I found or what to do with those numbers, so any help would be appreciated.
     
  2. jcsd
  3. Oct 4, 2011 #2

    Borek

    User Avatar

    Staff: Mentor

    State law of multiple proportions, that will be a good starting point.
     
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