Please answer Q1. When performing an extraction with the solvent pair: H 2 O met

Question

Please answer

Q1.   When performing an extraction with the solvent pair: H2O methylene chloride (DCM), two separate layers

      (aqueous and organic) form. What is the order of the layers and why?

a) The aqueous layer is on top and the organic layer is on the bottom. This is due to the water layer being more dense.

b) The organic layer is on top and the aqueous layer is on the bottom. This is due to the water layer being more dense.

c) The aqueous layer is on top and the organic layer is on the bottom. This is due to the aqueous layer being more dense.

d) The aqueous layer is on top and the organic layer is on the bottom. This is due to the organic layer being more dense.

Q2.   Under the conditions of this extractive procedure, how does aspirin become partitioned into the aqueous layer? How do we then recover this substance in a pure form from the aqueous layer?

Explanation / Answer

Density of water is 1 g/ml

Density of dichloromethane (DCM or methylene chloride) is 1.325 g/ml

DCM has a higher density so this will go at the bottom

answer is D

The aqueous layer is on top and the organic layer is on the bottom. This is due to the organic layer being more dense.

For Question 2, the conditions of your procedure have not been mentioned....

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