Grade 12Physical Chemistry
1. The water vapour pressure at 293 K is 2338 Pa and the vapour pressure of an aqueous solutionis 2295.8 Pa. Determine its osmotic pressure at 313 K if the solution density at this temperatureis 101 kg/m3. The molecular weight of the solute is 60. 2. At 25oC a slution containing 0.2 g of olyisobutylene in 100 cc of benzene , developed a rise of 2.4 mm at osmotic equilibrium. Calculate the molecular weight of polyisobutylene if the density of th solution is 0.88 g/cc.
1. The water vapour pressure at 293 K is 2338 Pa and the vapour pressure of an aqueous solutionis 2295.8 Pa. Determine its osmotic pressure at 313 K if the solution density at this temperatureis 101 kg/m3. The molecular weight of the solute is 60.
2. At 25oC a slution containing 0.2 g of olyisobutylene in 100 cc of benzene , developed a rise of 2.4 mm at osmotic equilibrium. Calculate the molecular weight of polyisobutylene if the density of th solution is 0.88 g/cc.
