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March 26, 2017

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How many coulombs of positive charge are in 3.8 mol of O2 gas?

  • physics - ,

    Only the ones due to protons in the nuclei, and they are all neutralized by electrons surrounding the molecules.

    If they want the charge in nuclei, for 3.8 moles, that would be
    3.8*32*e*(Avogadro's number)

  • physics - ,

    I came out with 1.99e26 and I got it wrong. What is the point of multiplying by e?

  • physics - ,

    They are asking for charge (in Coulombs), not the number of protons. +e is the charge of one proton.

  • physics - ,

    So I need to multiply by 10 not e? Is that right? So the answer should be 7.32e26

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