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When 5.0 g of a nonelectrolyte is added to 25 g of water, the new freezing point is -2.5 degrees C. What is the molecular mass of the unknown compound?
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julia186

by julia186 at May 31, 2011

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Kf (water) = 1.86delta Tf = Kf * mn = .3360215mol/g = .0672

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Seth_Warncke

Seth_Warncke June 07, 2011

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g/mol = 14.88

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19569

Seth_Warncke

Seth_Warncke June 07, 2011