1. (3) Acetone is a more polar solvent than diethyl ether. Withreference to the structures and specific functional group(s) ofeach molecule, why is cholesterol more soluble in acetone thanlecithin is?
2. (2) In step 3 of the “Extraction and purification ofCholesterol,” the egg yolk is mashed with a spatula. What is thepurpose of this step? ( consider how it helps with the followingstep(s) )
3. (2) In step 7 under “Extraction and purification ofLecithin,” acetone is added to the ether solution. Briefly describethe purpose of this step and how it helps isolate purelecithin.
4. (3) At the end of the reaction, you may have excessmaterials. Where should you dispose of each substance below?
Acetone:
Cholesterol:
Diethyl ether:
Egg yolk:
Lecithin:
