Question

a) During the workup of the reaction, an aqueous solution of sodium bicarbonate was added to the cooled reaction mixture. Why was this done

Answer 1

The purpose of adding an aqueous solution of sodium bicarbonate is either to extract a certain compound or to remove/neutralize acidic compounds present in the reaction mixture.

Step-by-step explanation:

Upon adding sodium bicarbonate, carbon dioxide is released (gaseous state at room temperature), which helps build up pressure that is able to push out the unwanted gas/liquid.