Question

The nonvolatile, nonelectrolyte sucrose , C₁₂H₂₂O₁₁ (342.3 g/mol), is soluble in water H₂O.

How many grams of sucrose are needed to generate an osmotic pressure of 3.56 atm when dissolved in 227 ml of a water solution at 298 K.

grams sucrose

Answer 1

Osmotic pressure of the solution, 3.56atm Temperature, T=298K R-0.0821 L atm mole K- Calculate the concentration of the solution using the following equation: π=CRT 3.56 atm =Cx 0.0821 L . atm . mole-i K-1 × 298 K 3.56 atm 0.0821L atm mole-K x298K mole Volume of the solution, V- 227mLx 1000mL 0.227L mole Number of moles of the solution-0146 x 0.227 L 0.0330mole Mass of the sucrose-0.0330 molex 342.3-e mole -11.3g