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16 December, 07:37

A compound is found to contain 54.5% carbon, 9.1% hydrogen, and 36.4% oxygen. Determine the simplest formula.

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  1. 16 December, 07:41
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    The simplest formula is calculated as follows

    find the moles of each element = 5 composition/molar mass of element

    C = 54.5 / 12 = 4.542 moles

    H = 9.1/1 = 9.1 moles

    O = 36.4 / 16 = 2.275 moles

    find the mole ratio by diving each mole with the smallest mole (2.275 mole)

    C = 4.542 / 2.275 = 2

    H = 9.1 / 2.275 = 4

    O = 2.275/2.275 = 1

    the simple formula is therefore = C2H4O
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