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28 April, 17:45

What is the empirical formula of a compound that contains 92% carbon and 8%

hydrogen?

>

A

CH

CH

0

сн.

0

+2
Answers (1)
  1. 28 April, 19:03
    0
    The empirical formula of the compound is CH

    Explanation:

    We are provided with the information that C has 92% and H has 8% in the compound

    Note % is also written in mass ie grams (g)

    Molar mass of C - 12.0107

    Molar mass of H - 1.00784

    C. H

    92g. 8g

    Divided by the number of molar mass to get the number of moles

    92g. 8g

    12.0107. 1.00784

    = 7.6598. = 7.9378

    Divide through by the number of mole that has the lowest value

    7.6598/7.6598 7.9378/7.6598

    = 1. = 1.363

    Therefore C has 1 = 1

    H has 1.363 = 1

    The empirical formula = CH
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