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4 September, 12:18

What is the mass percentage of iodine (i2) in a solution containing 4.0*10-2 mol i2 in 140 g of ccl4?

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  1. 4 September, 12:40
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    (0.058 mol I2) (253.808 g/mol I2) = 14.721 g of I2

    So that's the mass of I2: 14.721 g

    Percentage is the mass of solute / (mass of solute + mass of solvent)

    14.721 / (14.721g + 105 g)

    14.721/119.721

    =0.123 or 12.3%
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