Synthesis of Isopentyl Acetate (Banana Oil)?

Question

in a Synthesis of Isopentyl Acetate (Banana Oil) lab can some one help me with this questions
1. What is the purpose of washing the organic layer with 5% aqueous sodium bicarbonate? Remember, you used an excess of glacial acetic acid.
2. What is the purpose of washing with 25 mL of water?
3. Why is it necessary to record the barometric pressure when distilling at atmospheric pressure?

Answer 1

The sodium bicarbonate is to neutralize any residual acid that might remain behind in your product.

Washing with water will help remove any residual inorganic salts from the above step.

You need to record the barometric pressure when distilling at atmospheric pressure because that is the pressure you are distilling at; the boiling points of your product(s) will change depending on the pressure.

Answer 2

Synthesis Of Isopentyl Acetate

Answer 3

Synthesis Of Banana Oil

Answer 4

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RE:
Synthesis of Isopentyl Acetate (Banana Oil)?
in a Synthesis of Isopentyl Acetate (Banana Oil) lab can some one help me with this questions
1. What is the purpose of washing the organic layer with 5% aqueous sodium bicarbonate? Remember, you used an excess of glacial acetic acid.
2. What is the purpose of washing with 25 mL of water?
3. Why...

Answer 5

1. the sodium bicarbonate was neutralizes any residual acid.

2. to remove any excess acids/bases or salts that may still be in the organic layer?

3. You need to record the pressure so that you distillation temperature makes sense. Boiling point changes depending on the barometric pressure, so if you run a distillation in Colorado (higher elevation, less air pressure), the boiling point will be lower than if you run the same experiment in, say, Boston (sea level).