Answered: I need help calculating ppm 7.5 mg of…

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter7: Solutions And Colloids

Section: Chapter Questions

Problem 7.37E

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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.l.60 102 mL water at 3 1.2C (the density of water at 31.2C is 0.995 g/cm3). 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?
15. You are given a series of 10 tubes. In the first is placed 9 milliliters of saline. In each of the others is placed 5 mL of saline. One milliliter of serum is added to the first tube. Five milliliters from this tube are transferred to the second tube, and 5 ml are transferred throughout the remaining tubes. Discard the last 5ml transferred. Give the following: a. Tube dilution for tubes 1 and 6 b. The solution dilution for tubes 1,4, and 7 c. The amount of serum present in tube #3 after transfer.
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if 0.0125g of caffeine diluted with water in 250 ml volumetric flask give me a solution with a concentration of 0.05 mg/ml. how much theobromine is needed for a combined solution of the same 0.05 mg/ml concentration?
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= 209; S =32 ). What is the solubility of Bi2S3 in g/L (At. Mass: Bi = Ksp Bi2S3= 1.6 x 10-72 Answer format: 1.00x10-14 (Don't put the unit. Round-off your final answer in two decimal place)
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I need help calculating ppm 7.5 mg of caffeine in 50 mL = 150 ppm can you help me with the step