A dilute sugar solution (0.0025 M) is separated from pure water by a semipermeable membrane so that an osmotic pressure is established. What is the osmotic pressure at 25°C?

Question

Quizplus · Accepted Answer

The osmotic pressure (π) can be calculated using the formula π = iMRT, where i is the van't Hoff factor (1 for sugar), M is the molarity (0.0025 M), R is the ideal gas constant (0.0821 L·atm/mol·K), and T is the temperature in Kelvin (298 K for 25°C). Converting atm to Torr (1 atm = 760 Torr), the calculation gives approximately 46.4 Torr.

A Dilute Sugar Solution (0