Question

Calculate the vapor pressure of a solution containing 99.5g sucrose (C_12H_22O_11) and 300ml water at 25°C. the vapor pressure of water at 25°C is 23.8 mmHg. Assume density of water= 1.0 g/ml)

Answer 1

To calculate the vapor pressure of the solution, we can use Raoult's law. According to Raoult's law, the vapor pressure of a solution is equal to the vapor pressure of the solvent multiplied by the mole fraction of the solvent.

Step-by-step explanation:

To calculate the vapor pressure of the solution, we can use Raoult's law. According to Raoult's law, the vapor pressure of a solution is equal to the vapor pressure of the solvent multiplied by the mole fraction of the solvent.

In this case, the solvent is water and the solute is sucrose. We can find the mole fraction of water and use the given vapor pressure of water to calculate the vapor pressure of the solution.

The mole fraction of water can be calculated by dividing the moles of water by the total moles of the solution.

The moles of water can be calculated by dividing the mass of water by its molar mass.

Once we have the mole fraction of water, we can multiply it by the vapor pressure of pure water to find the vapor pressure of the solution.