Let's see another sample problem.

This time you have a mixture ofphenol and benzoic acid, dissolved in dichloromethane.

How do you separate these two compounds?


Answer:
To extract benzoic acid (a carboxylic acid), usually you may use either5% NaOH or sat. NaHCO3
HOWEVER, you cannot use NaOH solution this time.
It extracts both phenol and benzoic acid!

Do you still want to try NaOH solution? Click this button. Reset


Use NaHCO3 solution! (This is the right choice.)

Reset
Did you see that you separated the two compounds using NaCO3 aqueous solution?
Let's continue then...