CHEMISTRY

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The solubility of a substance is 12 g per 100 g water at 20 degree , and is 18 g per 100 g water at 60 degree , what is the mass of the substance can be crystallized in a saturated solution that contain 200 g of water , if the solution cooled from 60 to 20 degree ?

  • CHEMISTRY -

    At 60C 200 g H2O will hold
    18 x 200/100 = 36g and that is a saturated solution.
    At 20C it will hold 12 x 200/100 = 24.
    Difference is 36-24 = ?g

  • CHEMISTRY -

    12g

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