Question

while diluting a solution of salt water, a student by mistake added acetone (boiling point 56°C). What technique can be employed to get back the acetone? Justify your choice.

Answer 1

Answer:

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Acetone is soluble in water, a homogeneous mixture is obtained and hence separation by separating funnel cannot be used. Acetone can be get back by simple distillation because the difference in the boiling points of acetone and water is more than 25°C.

Boiling point of acetone - 56°C

Boiling point of water -100°C

In distillation flask, acetone will boil at 56°C and change into vapours and can be collected in flask after condensation.

Hope this is it....

Answer 2

Solution: Fractional distillation can be used to separate acetone from the mixture of salt and water.

Explanation: There are considerable differences in the boiling points of the acetone (56℃) and water (100℃). If we heat the solution the acetone evaporates first. The water is collected in the distillation flask. The vapors of acetone are there to obtain acetone.

I hope this help you....

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