Chemistry: Distillation Part I

a) Which of the following physical properties (boiling point, density, solubility, or melting point) do you think allows distillations to work? Explain your reasoning.

b) Many organic materials are hygroscopic and readily absorb water from the air. Recognizing this, a student in the organic lab suggests the following: “To dry these samples, simply dissolve the solids in benzene then distill to dryness. This should remove all of the water from the samples”. Comment on the student’s suggestion.

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