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Homework Help: Coulombs in a nuclei

  1. Aug 19, 2009 #1
    1. The problem statement, all variables and given/known data
    Suppose you have 1.0 mol of O2 gas. How many Coulombs of positive charge are in the atomic nuclei of this gas?

    2. Relevant equations
    I assume you would use Q=ne with Avogadro's number...

    3. The attempt at a solution
    1 mol O2/ 6.23 x 10^23 * 8 protons * 1.60 x 10^-19
  2. jcsd
  3. Aug 19, 2009 #2
    There are two oxygen atoms in every molecule of O2... I cannot tell if you took that into account? You got the charge in Coulombs of 1 proton. And you did write down how many O2 molecules are contained in 1 mole of O2... And you did type the number of protons (atomic number) in one oxygen atom...8
  4. Aug 20, 2009 #3


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    Maybe that's just a typo. If not, you should look up the value of Avogadro's number.
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