1for a certain substance X. When 37.97of ureaThe molal freezing point depression constant K,=2.57 °C·kg•mol(NH),CO)CO are dissolved in 850. g of X, the solution freezes at 5.7 °C. Calculate the freezing point of pure X.Be sure your answer has the correct number of significant digits.

At freezing point of liquid there exists equilibrium between solid particles and solvent phase.…

Answered: K,= 2.57 °C kg mol for a certain subs…

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K,= 2.57 °C kg mol for a certain subs 20 colution freezes at 5.7 °C. Calculate the freezing point of pure X.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 80QRT

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

1
for a certain substance X. When 37.97
of urea
The molal freezing point depression constant K,=2.57 °C·kg•mol
(NH),CO)
CO are dissolved in 850. g of X, the solution freezes at 5.7 °C. Calculate the freezing point of pure X.
Be sure your answer has the correct number of significant digits.

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