question_answer 12)

Calculate the osmotic pressure in pascals exerted by a solution prepared by dissolving 1.0 g of polymer of molar mass 185,000 in 450 mL of water at 37°C.

Answer:

             Here, number of moles of solute dissolved   V = 450 mL = 0.450 L T = 37°C = (37 + 273) K = 310 K R = 0.0821 L atm K-1 mol-1   = 0.306 × 10-3 atm = 3.06 × 10-1 × 1.013 × 105 Pa = 30.96 Pa.