Question

while diluting a solution of salt in water a student by mistake added acetone which seperation techniques' can be employed to get back the acetone ?explain

Answer 1

Acetone can be got back by the process of simple distillation.

• Acetone is water soluble, that results in a homogeneous mixture, thus isolation can not be used by separating the funnel.
• Acetone can be recovered by easy distillation, as the difference in acetone and water boiling points is greater than 25oC.
• n the distillation flask, acetone can boil at 56 ° C and transition to vapors, and after condensation can be collected in flask.

Answer 2

Simple Distillation

Explanation:

Acetone is soluble in water. So a homogeneous mixture is formed due to the student's mistake. Now we cannot separate this mixture by simple methods. The boiling point of acetone and water are different. We can use this property to separate the mixture. The boiling point of water is 100°C but the boiling point of acetone is 56°C. So we can separate this mixture by distillation. We take the mixture in a distillation flask and heat it until acetone evaporates first. This vapor is collected and condensed to obtain acetone, while water is left behind in the flask, as we do not heat the mixture up to 100°C.