Question

Calculate the vapor pressure (in torr) at 293 K in a solution prepared by dissolving 25.8 g of the non-volatile non-electrolye glucose in 123 g of water. The vapor pressure of water at 293 K is 17.54 torr. Enter your answer to 2 decimal places.

Answer 1

To calculate the vapor pressure in the solution, we need to consider Dalton's law of partial pressures. The vapor pressure of water needs to be subtracted from the total pressure to obtain the vapor pressure of the glucose-water solution. Given that the vapor pressure of water at 293 K is 17.54 torr, the vapor pressure of the solution is 742.46 torr.

Step-by-step explanation:

To calculate the vapor pressure in the solution, we need to consider Dalton's law of partial pressures. According to Dalton's law, the total pressure is equal to the sum of the partial pressures of the individual components. In this case, the vapor pressure of water needs to be subtracted from the total pressure to obtain the vapor pressure of the glucose-water solution.

Given that the vapor pressure of water at 293 K is 17.54 torr, we can use the equation:

Vapor pressure of solution = Total pressure - Vapor pressure of water

Substituting the values, the vapor pressure of the solution is:

Vapor pressure of solution = 760 - 17.54 = 742.46 torr