The osmotic pressure of solutions of PVC in cyclohexanone at 300 K are plotted on the graph. The molar mass of PVC is g mol - 1 (Nearest integer) (Given : R = 0 . 083 L atm K - 1 mol - 1 )

Step-by-step solution

Using osmotic pressure in ideal gas equation: π = M ' RT = W / M V RT ⇒ π = W V 1 M RT = C RT M ⇒ π C = RT M If we assume given graph between π C and C Slope = RT M = 0 . 083 × 300 M = 6 × 10 - 4 ∴ M = 0 . 083 × 300 6 × 10 - 4 = 830 × 300 6 = 41 , 500 gm / mole