I am doing a lab this week where the objective is to use acids and bases and a microscale extraction to separate three solids in a mixture. The mixture in question is a mixture of naphthalene, benzoic acid, and ethyl 4-aminobenzoate. It will then be put through a series of solvents and extractions in order to separate the 3 components. Naphthalene is neutral, benzoic acid is acidic, and ethyl 4-aminobenzoate is basic. So if I add an acid to the mixture, the ethyl 4-aminobenzoate will separate, which I can then extract. If I then put it into another container and add NaOH, it will reform as a solid, which I can then dry with vacuum drying. Ok so there is my solid ethyl 4-aminobenzoate. The same can be done with a base added to separate the benzoic acid, then putting HCl to solidify the benzoic acid in another container, and dry once again. Solid Benzoic acid. However, I am not sure about the neutral compound. Is the idea here that I remove the benzoic acid and ethyl 4-aminobenzoate, leaving my original container only having the neutral compound, which is there by itself? In this process, where are the drying agents needed and how do I know how much I need? This is Part B of the experiment being performed later this week. The immediate Part A is to test the 5 compounds (the 3 previously mentioned compounds and the resultant compounds of adding acid (HCl)/base (NaOH), ethyl 4-aminobenzoate hydrochloride and Sodium benzoate) in 4 different solvents for solubility, and we should be able to use the results from Part A to make a ''flow scheme'' for isolating the mixture. How are the solubilities related in this case? What am I going to need to use the solubilities for to do my flow scheme?