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OpenStudy (anonymous):
Osmotic pressure exerted by a 0.325-g sample of the polymer polystyrene in 50.00 mL of benzene at 25 C is capable of supporting a column of the solution (d=0.88g/mL) 5.3 mm in height. What is the molar mass of the polystyrene? (Hint: What is the height of mercury [d=13.6 g/mL] equivalent to that of the polymer solution?)
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