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Solutions
(a) Draw a labelled diagram to show the change in vapour pressure of a solvent, when a non-volatile solute is added to it.
(b) Show that the change in boiling point of the solvent in this diagram?
Answer:
(a) It is found that the boiling point of the solution is always higher than that of the pure solvent. The elevation in boiling point is the increase in boiling point when a non-volatile solute is added to a solvent.
(b) In the above diagram ΔTb indicates the change (increase) in boiling point of solvent.
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Calculate the mole fraction of benzene in solution containing 30% by mass in carbon tetrachloride.
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