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Question
The relative lowering of vapour pressure of a sugar solution in water is 2.5 × 10-3. The mole fraction of water in that solution is ______.
Options
0.0035
0.35
0.0035/18
0.9965
Solution
The relative lowering of vapour pressure of a sugar solution in water is 2.5 × 10-3. The mole fraction of water in that solution is 0.9965.
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