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when 10.0 grams of an unknown substance is dissolved in 50. grams of water, the new freezing point becomes -3.00C. What is the molar mass of the compound?

For this question can some one tell me the formulas I need to solve for this problem and I can fill in the rest

  • chemistry -

    delta T = Kf*m
    m = moles/kg solvent
    moles = g/molar mass

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