Organic synthesis

Question 1

How do you prepare a solution for the synthesis of an organic liquid

Answer 1

Heat under reflux/distillation

Question 2

What is step 2 in the synthesis of an organic liquid ?

Answer 2

Separate the organic and aqueous layer using a separating funnel

Question 3

What is step 3 in the synthesis of an organic liquid ?

Answer 3

Neutralise acid (if present) impurities using Na2Co3

Question 4

What is step 4 in the synthesis of an organic liquid ?

Answer 4

Dry organic solution using anhydrous salt (MgSo4)

Question 5

What is the final step in the synthesis of an organic liquid ?

Answer 5

Redistillation
at the stated temperature in the question

Question 6

Explain how a student could obtain a pure dry sample of organic solvent ?

Answer 6

1. Heat under reflux/distillation
   2.Separate the organic and aqueous layer
2. Neutralise acid impurities using Na2Co3
3. Dry the solution using an anhydrous salt (MgSo4)
4. Redistillation at the stated temperature in question

Question 7

How would you distinguish the organic layer and the aqueous layer ?

Answer 7

The organic layer contains what the desired product is
Aqueous layer is everything else