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28 September, 05:50

What is the approximate percent by mass of oxygen in C2H4O2

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  1. 28 September, 07:42
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    Approximately 53.3 %.

    Explanation:

    Molar mass of C2H4O2

    = 2 * 12.011 + 4 * 1.008 + 2 * 15.999

    = 60.052

    % oxygen = (31.998 * 100) / 60.052 = 53.28 %
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