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chemistry

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A compound weighing 115 g contains 68.3 g of carbon, 13.2 g of hydrogen, 15.9 g of nitrogen, and some amount of oxygen. What is the mass percent of oxygen in the compound?

  • chemistry -

    g oxygen = 115-68.3-13.2-15.9 = ?
    % oxygen = (?g oxygen/115)*100 = ?

  • chemistry -

    ahahah

  • chemistry -

    15.30%

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