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Calculate the freezing point of 0.5 g of biphenyl in 20.0 mL of cyclohexane. Cyclohexane Fp = 6.5 degrees C Kf 20.01

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mols biphenyl = grams/molar mass = ?
molality biphenyl = mols/kg solvent
delta T = Kf*m. Solve for delta T.
Then subtract delta T from 6.5 to find the new freezing point.

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