The Osmotic Pressure of 1 $\circ$ CEstimate the Average Molar Mass of the Polymer

Multiple Choice

The osmotic pressure of 1.00 g of a polymer dissolved in benzene to give 200 mL of solution is 1.50 kPa at 25 ^$\circ$ C.Estimate the average molar mass of the polymer.The gas law constant is 0.0821 L.atm.mol^-1.K^-1.

A) 41 300 g.mol^-1
B) 8260 g.mol^-1
C) 693 g.mol^-1
D) 1650 g.mol^-1
E) 62 000 g.mol^-1