Help with standard deviation Standardization of the NaOH solutionVolume of NaOH added18.2Trial 1Trial 2Trial 317.818.16.37x10^-41.26x10^-31.95x10^-3Molarity of the NaOHAverage Molarity of NaOH1.28x10^-3Standard deviation

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Answered: Standardization of the NaOH solution…

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter11: Solutions

Section: Chapter Questions

Problem 10P

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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?
In lab you need to prepare at least 100 mL of each of the following solutions. Explain how you would proceed using the given information. a. 2.0 m KCl in water (density of H2O = 1.00 g/cm3) b. 15% NaOH by mass in water (d = 1.00 g/cm3) c. 25% NaOH by mass in CH3OH (d = 0.79 g/cm3) d. 0.10 mole fraction of C6H12O6 in water (d = 1.00 g/cm3)
Caffeine is made up of 49.5% C, 5.2% H, 16.5% O, and 28.9% N. A solution made up of 8.25 g of caffeine and 100.0 mL of benzene (d=0.877g/mL) freezes at 3.03C. Pure benzene (k f =5.10C/m) freezes at 5.500C. What are the simplest and molecular formulas for caffeine?

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Standardization of the NaOH solution Volume of NaOH added 18.2 Trial 1 Trial 2 Trial 3 17.8 18.1 6.37x10^-4 1.26x10^-3 1.95x10^-3 Molarity of the NaOH Average Molarity of NaOH 1.28x10^-3 Standard deviation