yeasts are able to produce high internal concentrations of glycerol to counteract the osmotic pressure of the surrounding media. suppose that a sample of yeast cells were placed in a 4% sodium chloride solution by weight. The density of solution is at 25 C = 1.02 g/ml, Molecular weight of solute = 58.44 g/mol, i of glycerol = 1 R=0.08205 L-atm/mol-K   What is the molarity of the solution? What is the value of the temperature to be used to solve for the osmotic pressure of the solution? What is the osmotic pressure of solution

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter12: Solutions
Section: Chapter Questions
Problem 12.98QE
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yeasts are able to produce high internal concentrations of glycerol to counteract the osmotic pressure of the surrounding media. suppose that a sample of yeast cells were placed in a 4% sodium chloride solution by weight.

The density of solution is at 25 C = 1.02 g/ml,

Molecular weight of solute = 58.44 g/mol,

i of glycerol = 1

R=0.08205 L-atm/mol-K

 

  1. What is the molarity of the solution?
  2. What is the value of the temperature to be used to solve for the osmotic pressure of the solution?
  3. What is the osmotic pressure of solution
  4. At the same temperature, what will be the molar concentration of glycerol considering the computed osmotic pressure of the solution and the normal osmotic pressure inside a yeast cell of 7.3 atmospheres?

 

 

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