During a solvent extraction, a student lost track of which layer was the aqueous layer and which layer was the organic layer. what simple, non-destructive test could be used to determine which layer is which?

a. add a little distilled water to see which layer the water adds to

b. obtain a sample of the solution in the seperatory funnel and ultilize ir

c. ask the instructor if you can perform a supercritical extraction of the sample

c. obtain a sample of solution in seperatory funnel and utilize infrared spectroscopy (ir).