Question

The vapor pressure of water at 20°C is 17.5 mmHg. What is the vapor pressure of water over a solution prepared by dissolving 25.0 g of glucose (C6H12O6) in 500. mL of water?

Answer 1

moles of sucrose Mole fraction of sucrose = moles sucrose t moles of water 25 g Sucrose Sucrose 342.13 g/mol 25 g + 500g 342.13 g/mol 18.01g/mol 2-62 X103 mole traction water хоо у = $. 18.01 g/mol 25 t soo 342.13. 18.01 0.997 water Water = solution - 1 water x 17 65 mm ng 17. 45 mmng Answer