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25 September, 00:23

An analysis of 10.0 grams of sample of a compound is found to contain 27.0 percent sodium (na), 16.5 percent nitrogen (n), and 56.5 percent oxygen (o). determine the empirical formula of the compound.

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  1. 25 September, 00:57
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    M Na : mN : mO = 27 : 16,5 : 56,5

    NaxNyOz

    23x : 14y : 16z = 27 : 16,5 : 56,5

    x : y : z = 1,2: 1,2 : 3,5

    x : y : z = 1 : 1 : 2,91 (~3)

    Empirical formula of this compound is NaNO3.

    :-); - )
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