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Question
Answer the following in one or two sentences.
Which of the four colligative properties is most often used for molecular mass determination? Why?
Solution
i. Among the four colligative properties, osmotic pressure is most often used for molecular mass determination.
ii. Osmotic pressure is much larger and therefore more precisely measurable property than other colligative properties.
Therefore, it is useful to determine molar masses of very expensive substances and of the substances that can be prepared in small quantities.
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