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Urea, (NH2)2CO, is dissolved in 73.5 g of water. The solution freezes at -0.095°C. How many grams of urea were dissolved to make this solution? (Answer must be in grams)

  • Chemistry - ,

    delta T = Kf*molality
    Solve for molality.

    molality = moles/kg solvent.
    Solve for moles.

    moles = grams/molar mass.
    Solve for grams.

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