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If 75.0 grams of water is decomposed into hydrogen and oxygen, how many grams of oxygen should be formed?

  • chemistry - ,

    2H2O ==> 2H2 + O2
    Convert 75.0g H2O to mols. mols = grams/molar mass

    Use the coefficients in the equation to convert mols H2O to moles O2.

    Convert moles O2 to grams. g = mols x molar mass

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