Xglucose = Moles of glucose / (Moles of glucose + Moles of water) The mole fraction of glucose in the solution is given by: The vapor pressure of the solution is the sum of the partial pressures of all the components in the solution. Step 4: Calculation of vapor pressure of the solution Where P0 is the vapor pressure of pure water and Xwater is the mole fraction of water in the solution.Īt 25☌, the vapor pressure of pure water is 23.76 torr. Step 3: Calculation of vapor pressure of waterĪccording to Raoult's law, the vapor pressure of water (P) in the solution is given by:
Mole fraction of water = Moles of water / (Moles of glucose + Moles of water) Step 2: Calculation of mole fraction of water
Moles of water = Mass of water / Molar mass of water Moles of glucose = Mass of glucose / Molar mass of glucose Step 1: Calculation of moles of glucose and water This is a question based on the concept of Raoult's law which states that the vapor pressure of a solution is directly proportional to the mole fraction of the solvent in the solution.
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