Patients undergoing an upper gastrointestinal tract
Chapter 11, Problem 93(choose chapter or problem)
Patients undergoing an upper gastrointestinal tract laboratory test are typically given an X-ray contrast agent that aids with the radiologic imaging of the anatomy. One such contrast agent is sodium diatrizoate, a nonvolatile water-soluble compound. A 0.378 m solution is prepared by dissolving 38.4 g sodium diatrizoate (NaDTZ) in 1.60 102 mL water at 31.2C (the density of water at 31.2C is 0.995 g/mL). What is the molar mass of sodium diatrizoate? What is the vapor pressure of this solution if the vapor pressure of pure water at 31.2C is 34.1 torr? 9
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