Answered: A 17.2 mg sample of a protein is…

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter24: Biochemistry

Section: Chapter Questions

Problem 36IL: Insulin is a protein important in the metabolism of sugar. Its molar mass can be determined by means...

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1. A 17.2 mg sample of a protein is dissolved in water to make a 24.9 mL solution. The osmotic pressure is 0.50 mmHg at 22^oC. What is the molar mass of the protein? Answer with 0 decimal places.

2. What is the osmotic pressure (in mmHg) of an 0.13 M C₄H₂N solution at 29 ^oC?

3. What is the molarity of an aqueous solution of C₆H₁₂O₆ that has an osmotic pressure of 109 mmHg at 15^oC? Answer with 3 decimal places.

4. At what temperature (in ^oC) would the osmotic pressure of a 0.52 M aqueous solution of C₆H₁₂O₆ be 162 mmHg? Answer with 0 decimal places.

5. What mass of benzene (C₆H₆) would need be added to a 404 mL solution of cyclohexane (C₆H₁₂) at 18^oC to give an osmotic pressure of 175 mmHg? Answer with 3 decimal places.

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