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A certain liquid X has a normal boiling point of 97.50C and a boiling point elevation constant Kb=1.33Ckgmol1. A solution is prepared by dissolving some

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A certain liquid X has a normal boiling point of 97.50C and a boiling point elevation constant Kb=1.33Ckgmol1. A solution is prepared by dissolving some urea (CH4N2O) in 400. g of X. This solution boils at 99.9C. Calculate the mass of CH4N2O that was dissolved. Round your answer to 2 significant digits

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