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5 February, 12:31

what is an empirical formulaWhat is the percent composition by mass of nitrogen in (NH4) 2CO3 (gram-formula mass = 96.0 g/mol) ?

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  1. 5 February, 15:17
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    Percentage composition = 14.583%

    Explanation:

    In chemistry, the emprical formular of a compound is the simplest formular a compound can have. It shows the simplest ratio in which the elements are combined in the compound.

    Percentage composition by mass of Nitrogen

    Nitrogen = 14g/mol

    In one mole of the compound;

    Mass of Nitrogen = 1 mol * 14g/mol = 14g

    Mass of compound = 1 mol * 96.0 g/mol = 96

    Percentage composition of Nitrogen = (Mass of Nitrogen / Mass of compound) * 100

    percentage composition = 14/96 * 100

    Percentage composition = 0.14583 * 100

    Percentage composition = 14.583%
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