Question

When separating benzoic acid, naphthalene, and 3-nitroaniline, identify the solution used for each described purpose.

a)Extract reconstituted 3-nitroaniline out of the aqueous b)Extract aniline into the aqueous layer 5% HCI solution 6 M HCI c)Extract benzoic acid into the aqueous layer 6 M NaOH Reconstitute aniline from aqueous layer Dichloromethane

Answer 1

To extract 3-nitroaniline, use dichloromethane. To extract aniline, use 5% HCl. To extract benzoic acid, use 6 M NaOH.

Step-by-step explanation:

To extract reconstituted 3-nitroaniline out of the aqueous solution, you would use a nonpolar organic solvent such as dichloromethane.

To extract aniline into the aqueous layer, you would use a 5% HCl solution. Aniline is basic and reacts with the acidic environment to form anilinium ion, which is water-soluble.

To extract benzoic acid into the aqueous layer, you would use a 6 M NaOH solution. Benzoic acid reacts with the basic environment to form its water-soluble sodium salt, sodium benzoate.