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A compound with an empirical formula of C 2H 4Br has a molar mass of 215.90 g/mol. What is the molecular formula?

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AYMAN

  1. C2 H4 Br ?
    C = 12 grams / mol
    H = 1 gram / mol
    Br = 80 grams / mol
    x * (24 + 4 + 80) = 216
    x * 108 = 216
    x= 2
    so
    C4 H8 Br2

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    Damon

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