A certain substance X condenses at a temperature of 111.6 C. But if a 200. g sample of X is prepared with 7.38 g of urea (NH2)2CO dissolved in it, the sample is found to have a condensation point of 111.9 C instead. Calculate the molal boiling point elevation constant Kb of X.

Given that: Temperature (T1) = 111.6 C Mass of X substance = 200 g = 0.2 kg Mass of urea = 7.38 g…

Answered: A certain substance X condenses at a…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter11: Properties Of Solutions

Section: Chapter Questions

Problem 72E: A 2.00-g sample of a large biomolecule was dissolved in 15.0 g carbon tetrachloride. The boiling...

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A certain substance X condenses at a temperature of 111.6 C. But if a 200. g sample of X is prepared with 7.38 g of urea (NH₂)₂CO dissolved in it, the sample is found to have a condensation point of 111.9 C instead. Calculate the molal boiling point elevation constant K_b of X.

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