8 A sample of 2.05 g of polystyrene of uniform polymer chain length was dissolved in enough toluene to form 0.100 Lc solution. The osmotic pressure of this solution was found to be 1.21 kPa at 25°C. Calculate the molar mass of the polystyrene. a) O 2.35 x 10* g/mol b) 4.20x 10 g/mol C) 3.05 x 105 g/mo 4.20x 103 g/mol 4.20 x 10 g/mol

8 A sample of 2.05 g of polystyrene of uniform polymer chain length was dissolved in enough toluene to form 0.100 Lc solution. The osmotic pressure of this solution was found to be 1.21 kPa at 25°C. Calculate the molar mass of the polystyrene. a) O 2.35 x 10* g/mol b) 4.20x 10 g/mol C) 3.05 x 105 g/mo 4.20x 103 g/mol 4.20 x 10 g/mol

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 129QRT

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