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4 August, 15:25

2. A compound with the following composition by mass: 24.0% C, 7.0% H, 38.0% F, and 31.0% P. what is the empirical formula

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  1. 4 August, 15:54
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    C₂H₇F₂P

    Explanation:

    Given parameters:

    Composition by mass:

    C = 24%

    H = 7%

    F = 38%

    P = 31%

    Unknown:

    Empirical formula of compound;

    Solution:

    The empirical formula is the simplest formula of a compound. To solve for this, follow the process below;

    C H F P

    % composition

    by mass 24 7 38 31

    Molar mass 12 1 19 31

    Number of

    moles 24/12 7/1 38/19 31/31

    2 7 2 1

    Dividing

    by the

    smallest 2/1 7/1 2/1 1/1

    2 7 2 1

    Empirical formula C₂H₇F₂P
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