What is the mole fraction of solute in a 1.00 molal solution in which toluene (C7C8) is the solvent.

To calculate the mole fraction of solute in a solution, you need to know the amount of solute and solvent present. In this case, you have a 1.00 molal solution of toluene (C7C8) as the solvent.

Molality is defined as the moles of solute per kilogram of solvent. Since you have a 1.00 molal solution, it means there is 1.00 mole of solute per kilogram of solvent.

However, you didn't specify the amount of solvent in grams or kilograms. So, to calculate the mole fraction, we would need that information.

Please provide the amount of solvent in grams or kilograms, and I will be able to help you calculate the mole fraction of the solute.

To determine the mole fraction of solute in a solution, we need to know the number of moles of solute and the total number of moles of solute and solvent combined.

In this case, we are given that the solvent is toluene (C7H8) and the solution is 1.00 molal.

To calculate the mole fraction, we need to know the moles of the solute and the solvent. Since we are given the molality (1.00 molal), we can assume that there is 1.00 mole of solute per kilogram of solvent.

To convert this to moles of solute, we need to know the mass of the solvent. However, the exact mass of the solvent is not given. Therefore, we cannot accurately calculate the mole fraction without this information.

Once you have the mass of the solvent, you can convert it to moles using the molar mass of toluene (C7H8). Then, you can find the mole fraction of solute by dividing the moles of solute by the total moles of solute and solvent. The mole fraction can be calculated using the following formula:

Mole fraction of solute = moles of solute / (moles of solute + moles of solvent)

So, to find the mole fraction of solute, you first need to determine the mass of the solvent, convert it to moles, and then calculate the mole fraction using the formula mentioned above.

1 molal means 1 mol solute in 1 kg solvent.

mols solute = 1.00
mols solvent = 1000/18 = ?
Total mols = 1.00 + ? from above.
Then Xsolute = 1.00/total mols.