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?
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter11: Properties Of Solutions
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Problem 5ALQ: You have read that adding a solute to a solvent can both increase the boiling point and decrease the...
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![5. 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?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1df4ee5b-d5d6-4534-b8e2-36d3539f25c4%2F5a15023e-a164-463b-bfa6-beb200958e6e%2Fmazwmkh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:5. 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?
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