A typical sugar cube is about 4.00 gram os sucrose. The vapour pressure of water is 25degree celcius is 23.8mmhg. What is the change in vapour pressure if a sugar cube is dissolved in 250ml of water?

 

The vapour pressure of pure water at 110 degress celcius is 142.7 kPa. A solution of ethylene glycol and water has a vapour pressure of 101.3 kPa at 110 degrees celcius. Assuming that Raoults's law is obeyed what is the mole fraction of ethylene glycol in the solution?

Calculate the vapor pressure at 35°C of a solution made by dissolving 24.8 g of sucrose, C₁₂H₂₂O₁₁ , in 70.1 g of water. The vapor pressure of pure water is 42,2mmHg

That is the vapour pressure lowering of the solution? (Sucrose is non volatile)