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31 August, 05:29

A compound contains 46.7% nitrogen and 53.3% oxygen by mass. What is the empirical formula of the compound?

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  1. 31 August, 09:26
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    The empirical formula of a compound that contain 46.7 % nitrogen and 53.3% oxygen is calculated as below

    find the moles of each element

    that is, mole = % composition/molar mass

    nitrogen (N) = 46.7 / 14=3.33 moles

    oxygen (O) = 53.3 / 16 = 3.33 moles

    divide each mole with the smallest number of mole to get the mole ratio that is 3.33 moles

    nitrogen (N) = 3.33/3.33 = 1

    oxygen (O) = 3.33/3.33 = 1

    therefore the empirical formula = NO
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