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28 August, 21:49

In which of the following aqueous solutions would you expect AgI to have the highest solubility? In which of the following aqueous solutions would you expect AgI to have the highest solubility? 0.038 M NaI 0.050 M AgNO3 0.025 M KI 0.0125 M LiI AgI will have the same solubility in all solutions.

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  1. 28 August, 22:06
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    Solubility indicates the maximum amount of a substance that can be dissolved in a solvent at a given temperature. Such a solution is called saturated, it is calculated by dividing the mass of the compound by mass of the solvent then multiply by the molar concentration.

    molar mass of solvent (Agl) = 107.8682 + 126.90447 = 234.77267g/mol

    For 0.038M of Nal

    molar mass of Nal compound = 22.99 + 126.90447 = 149.89447g/mol

    solubility = [ 149.89447 / 234.77267] * 0.038 = 0.024

    For 0.05M of AgNO3

    molar mass of AgNO3 compound = 107.8682 + 14.01 + 3 (16) = 169.8782g/mol

    solubility = [169.8782 / 234.77267] * 0.05 = 0.036

    For 0.025M of KI

    molar mass of KI compound = 39.0983 + 253.8089 = 292.9072g/mol

    solublity = [292.9072 / 234.77267] * 0.025 = 0.031

    For 0.0125M of Lil

    molar mass of Lil compound = 6.941 + 253.8089 = 260.7499g/mol

    solubility = [260.7499 / 234.77267] * 0.0125 = 0.014

    Therefore the solution with the highest solubility is 0.05M of AgNO3
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