CAUTION!! Good to wait 5 min. to allow the drying agent absorb all trace water!!
Decant the organic layer using a small glass funnel with loosely packed cotton into a pre-weighed 50 mL RBF
Concentrate the dried organic extracts using a rotary evaporator (rota-vap)
*Product loss: subtract 1 mg CAF
Discuss:
How does reducing the pressure help evaporate solvent from the solution?
Results:
Calculate the mass recoveries for caffeine (CAF) by subtracting the total mass lost during the remote lab from the theoretical mass calculated at the beginning of the experiment
Calculate the actual percent recovery:
(mass of caffeine recovered / mass of Excedrin) *100
determine the mass of the product by difference