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The osmotic pressure of a solution of a ...

The osmotic pressure of a solution of a synthetic polyisobutylene in benzene was determined at `25^(@)"C"`. A sample containing 0.20 g of solute/100`"cm"^(3)` of solution developed a rise of 2.4 mm at osmotic equilibrium. The density of the solution was` 0.88"g"//"cm"^(3)`. What is the molecular weight of the polyisobutylene?

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