Question

Mole fraction formula when molarity and molality is given

Answer 1

• Molality is moles of solute per kilogram of solvent.

• So to get from mole fraction to molality, the easiest way is to assume that you have one total mole.

• Then the numerator of the molality is just X(solute) and the denominator is X(solvent) converted to kilograms

Answer 2

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The mole fraction of solute by dividing the moles of solute by the total number of moles of substances present in solution.

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