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8 October, 12:48

A Compound is found to contain 37.47% carbon, 12.61% hydrogen, and 49.92 % oxygen by mass. What is the empirical formula for this compound?

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  1. 8 October, 16:08
    0
    CH₄O

    Explanation:

    Given parameters:

    Mass percentage of:

    Carbon = 37.47%

    Hydrogen = 12.61%

    Oxygen = 49.92%

    Unknown:

    Empirical formula of the compound = ?

    Solution:

    The empirical formula of a compound is the simplest ratio by which the atoms in a compound combines.

    The actual formula of a compound is called the molecular formula.

    To solve for the empirical formula, we follow this process;

    Elements Carbon Hydrogen Oxygen

    Mass

    Percentage 37.47 12.61 49.92

    Molar

    mass 12 1 16

    Number

    of moles 37.47/12 12.61/1 49.92/16

    3.12 12.61 3.12

    Divide by

    the smallest 3.12/3.12 12.61/3.12 3.12/3.12

    1 4 1

    Empirical formula = CH₄O
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