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22 November, 23:11

How many grams of Cl are in a 38.0-g sample of the chlorofluorocarbon CF2Cl2

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  1. 22 November, 23:21
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    The molecular formula of chlorofluorocarbon is CF₂Cl₂

    Molecular mass of CF₂Cl₂ is 120.9 g/mol

    Mass of Cl in 1 mol - 2 x 35.5 = 71 g/mol

    in 120.9 g of compound - 71 g of Cl

    Therefore in 38 g of sample - 71/120.9 x 38 g of Cl

    Mass of Cl in 38 g - 22.31 g of Cl
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