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The normal freezing point of a certain liquid X is 3.6C, but when 84.69g of urea ((NH2)2CO) are dissolved in 900 . g of X,

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The normal freezing point of a certain liquid X is 3.6C, but when 84.69g of urea ((NH2)2CO) are dissolved in 900 . g of X, it is found that the solution freezes at 1.4C instead. Use this information to calculate the molal freezing point depression constant Kf of X. Be sure your answer has the correct number of significant digits

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