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Homework Help: Help me about empirical formula

  1. Sep 17, 2010 #1
    1. 36.8% of N and 63.25% of O
    2.63.6% of N and 36.4% of O
    at wts: N=14 and O=16

    answer it thanks!!
  2. jcsd
  3. Sep 17, 2010 #2
    Imagine, for instance 100g of sample 1. What mass is N, what mass is O? How many moles of each?
  4. Sep 17, 2010 #3
    i dont know . thats the given of our teacher :(
  5. Sep 17, 2010 #4
    If I had 100 metres of string, and 54% was black, 46% white, how much would be black and how much white?
  6. Sep 17, 2010 #5
    what ? :))
  7. Sep 17, 2010 #6
    Do you know what % means?
  8. Sep 17, 2010 #7


    User Avatar

    Staff: Mentor

    Welcome to the PF.

    This is schoolwork, so I've moved it to the Homework Help forums, per the PF Rules. Also part of the rules is that you mush show us your work, before we can be of help. We do not do your schoolwork for you.

    Please show us your work toward a solution...
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