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A 299.1mL benzene solution containing 2.21 g of an organic polymer has an osmotic pressure of 7.73 mm Hg at 25C. Calculate the molar mass

A 299.1mL benzene solution containing 2.21 g of an organic polymer has an osmotic pressure of 7.73 mm Hg at 25C. Calculate the molar mass of the polymer.

Please give to correct significant figures WITHOUT scientific notation.

Reposted because the previous answer was incorrect. The pressure is 7.73 mmHg, not ATM. The osmotic pressure equation must use pressure in units of atm.

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