Question:
A certain substance X melts at a temperature of 3.6 °C. But
Last updated: 7/10/2022
A certain substance X melts at a temperature of 3.6 °C. But if a 550. g sample of X is prepared with 27.9 g of urea ((NH2)2CO) dissolved in it, the sample is found to have a melting point of -1.6 °C instead. Calculate the molal freezing point depression constant Kf of X. Round your answer to 2 significant digits.