what information must you know to calculate the boiling point elevation of a solution of hexane in benzene.

Is it the temp, Kb and the molality?

To calculate the boiling point elevation of a solution of hexane in benzene, you need to know the following information:

1. Temperature: The initial boiling point of the pure solvent (benzene) at a given pressure.

2. Kb (molal boiling point elevation constant): This constant is specific to the solvent and is provided in reference tables. It represents how much the boiling point increases per unit change in molality.

3. Molality: The concentration of the solute (hexane) in moles per kilogram of the solvent (benzene).

With these three pieces of information, you can use the formula for boiling point elevation:

ΔTb = Kb * m

where:
- ΔTb is the boiling point elevation (the difference between the boiling point of the solution and the boiling point of the pure solvent).
- Kb is the molal boiling point elevation constant.
- m is the molality of the solute in the solution.

By plugging in the known values into the formula, you can calculate the boiling point elevation of the solution of hexane in benzene.