Question

What is the osmotic pressure of a solution made from 22.3 g of methanol (MM = 32.04 g/mol) that was added to water to make 251 mL of solution at 25.0 °C?

Answer 1

Answer to calcolation We used the formele of osmotic Pressure chere, ana 251 = 0.251 L T = WIRT I MV T - osmotic Pressure Ri Cras constant T = Temperature ink) M = Molar mals of solete. vo Volume af solution. Wz- mass of Sokete convert Volume me into 2 1 m2 = 1 L 1000 so 251m2 = value of R(has constant) = 0.093 L bar moltky Temperature T = 25+ 273.15 = 298.15k Putting values II - 22.38 X 0.083 Kbarmot 17 x 298.15K 32.098 mof x 0.951K T= 22.3 x0.063x298. 16 i 32.04 X 0.251 π- 551 & 958 .. 8.042 T = 68.62 bas. Tooo 98.15 bar Osmotic Pressure of solation (IT) = 68.62 ban "Pleage rate it"