(Answered) A solution of a water soluble polymer having a molar mass

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A solution of a water soluble polymer having a molar mass of 3.20*10^5g/mol is placed in an osmometer and allowed to equilibrate. After equilibration at 298K, the difference in height between the top of the solution in the osmometer's tube and the water level outside the tube is found to be 8.00cm. The total volume of the polymer solution is 10mL. What mass of this polymer was initially added to the osmometer? Pleases assume that the density of the aqueous polymer solution remains 1.00g/mL.

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