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What error in the percentage magnesium determined would have resulted?

(If water had not been added to your initial product, a mixture of magnesium oxide and magnesium nitride.)

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  • 1 decade ago
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    MgO has

    1 mol Mg @ 24.3 grams/mol

    in MgO @ 40.3 g/mol

    % Mg should be 60.3 % Mg

    Mg3N2 has

    3 mol Mg ...73.2 grams Mg

    in Mg3N2 @ 100.95 g/mol

    that's 72.5 % mg

    which when mixed with MgO

    gives you a higher % of Mg than you should have

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