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A sample of 3.54 grams of Polystyrene was dissolved in Toulene and diluted to a total volume of 141.08 ml?

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A sample of 3.54 grams of Polystyrene was dissolved in Toulene and diluted to a total volume of 141.08 ml. The Osmotic pressure of this solution at 25 celcius is 15.48 mm torr. What is the MOLAR MASS?

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  1. MM = 3.54 g x 0.0821 x 298 K / 0.0204 atm x 0.14108 L=30177 g/mol

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