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

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

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 8740 Points
9 months ago
Simple distillation can be employed to get back the acetone. Since acetone is more volatile, it will separate out first. Simple distillation is a procedure by which two liquids with different boiling points can be separated. The process of heating a substance until it vaporizes, cooling the vapours, and collecting the condensed liquid is the basis of a commonly used purification technique called distillation. Simple distillation can be used effectively to separate liquids that have at least more than 25 K Chap 2 : Is Matter Around Us Pure www.cbse.online difference in their boiling points. Since, the boiling point of acetone is 56°C (329.15 Kelvin) and boiling point of water is 100°C (373.15 Kelvin), and for distillation the minimum difference in temperature should be at least 50°C. Thus, by the process of distillation acetone can be separated.

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