Chemistry, 11.02.2020 05:54, asims13

A certain substance X melts at a temperature of −9.9°C . But if a 350g sample of X is prepared with 31.8g of urea NH22CO dissolved in it, the sample is found to have a melting point of −13.2°C instead.
a. Calculate the molal freezing point depression constant Kf of X . Round your answer to 2 significant digits.

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A certain substance X melts at a temperature of −9.9°C . But if a 350g sample of X is prepared with...