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A certain substance X has a normal freezing point of 9.8C and a molal freezing point depression constant Kf=4.11Ckgmol1. Calculate the freezing point of a

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A certain substance X has a normal freezing point of 9.8C and a molal freezing point depression constant Kf=4.11Ckgmol1. Calculate the freezing point of a solution made of 3.4g of urea ((NH2)2CO) dissolved in 200.g of X. Be sure your answer has the correct number of significant digits

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