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Chemistry Solution & Colligative Properties General Single Correct MCQ
Published on: August 14, 2026

When a liquid that is immiscible with water was steam distilled at 95.2ºC at a total pressure of 748 torr, the distillate contained 1.25 g of the liquid per gram of water. The vapour pressure of water is 648 torr at 95.2ºC, what is the molar mass of liquid?

A
7.975 g/mol
B
166 g/mol
C
145.8 g/mol
D
None of these

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The correct answer is:
C

For two immiscible liquid;

Pº A = P total – Pº H2O = 748 – 648 ⇒ 100

= ; M A = × ⇒ 145.8

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