A sample of 2.26 g of plastic polystyrene was dissolved in enough toluene to form 100 mL of solution. The osmotic pressure of this solution was found to be 1.17 kPa at 25∘C. a) Calculate the molarity of the solution based on the given osmotic pressure. b) Based on your calculated molarity, how many moles of polystyrene are in the solution? c) Determine the molar mass of the polystyrene.
A sample of 2.26 g of plastic polystyrene was dissolved in enough toluene to form 100 mL of solution. The osmotic pressure of this solution was found to be 1.17 kPa at 25∘C. a) Calculate the molarity of the solution based on the given osmotic pressure. b) Based on your calculated molarity, how many moles of polystyrene are in the solution? c) Determine the molar mass of the polystyrene.
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
Chapter13: Solutions And Their Behavior
Section: Chapter Questions
Problem 7PS
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A sample of 2.26 g of plastic polystyrene was dissolved in enough toluene to form 100 mL of solution. The osmotic pressure of this solution was found to be 1.17 kPa at 25∘C.
a) Calculate the molarity of the solution based on the given osmotic pressure.
b) Based on your calculated molarity, how many moles of polystyrene are in the solution?
c) Determine the molar mass of the polystyrene.
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