The osmolality of urine, plasma and other solutions is often determined by cryoscopy, which determines the decrease in freezing temperature of water. The cryoscopic constant of water is 1.853 K-Kg/mol (for concentrations of solutes expressed in molality). A normal urine sample has a freezing point of -1.11'C. A urine sample from a patient has a freezing point of -2.05°C. Using that information, what would you conclude regarding the state of hydration of the patient? What is the approximate osmolality in normal urine and in the urine of the patient? What is the mole fraction of osmolytes in the urine samples?
The osmolality of urine, plasma and other solutions is often determined by cryoscopy, which determines the decrease in freezing temperature of water. The cryoscopic constant of water is 1.853 K-Kg/mol (for concentrations of solutes expressed in molality). A normal urine sample has a freezing point of -1.11'C. A urine sample from a patient has a freezing point of -2.05°C. Using that information, what would you conclude regarding the state of hydration of the patient? What is the approximate osmolality in normal urine and in the urine of the patient? What is the mole fraction of osmolytes in the urine samples?
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter12: Solutions
Section: Chapter Questions
Problem 12.26QP: Equal numbers of moles of two soluble, substances, substance A and substance B, are placed into...
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