The purpose of this experiment is to use liquid-liquid extraction to isolate Benzoic Acid, Ethyl-4-aminobenzoate, and 9 Fluoronene. This technique is commonly used to isolate and purify products from a mixture, and also isolate natural products. The type of liquid-liquid extraction that was used in this experiment is acid and base extraction. This type of extraction takes advantage of the chemical properties of the compounds. Acid extractions are used to separate basic compounds from organic mixtures. Amines, organic salts, are converted into salts, which can then be dissolved in water and separated. Basic extraction is similar extraction, because adding a carboxylic acid to a base will yield a salt. The acid that was used in this experiment…show more content… The method that was used to separate these compound from each other was acid-base extraction. Acid-Base extraction is used to isolate and purify products from a mixture, and is also used to isolate natural products. The first part of the experiment involved separating the basic compound, Ethyl-4-AminoBenzoate from the initial mixture. To do this, the Ethyl-4-AminoBenzoate was mixed with hydrochloric acid. In doing so, the basic compound was converted into is corresponding cationic base. This was then mixed with sodium hydroxide to yield the final basic product. The mass of the final product that was obtained, was gathered to be 0.045 g, therefore the percent yield of the base was 90%. The melting point range of this basic compound was 91-970C. The second part of the experiment involved extracting the acid from the remaining mixture. To do this, Benzoic Acid was mixed with Sodium Hydroxide to yield the acid. The mass of the acid that was isolated from the mixture, was recorded to be 0.038 g, thus the percent yield of the acid was 76%. The melting point range of the acidic compound was recorded to be between…show more content… In this part, the acid and the base had already been isolated, therefore the neutral compound is all that remained in the test tube. The mass of the neutral compound that was obtained was found to be 0.04 g, thus the percent yield of the neutral compound was 90%. The melting point range of the neutral compound was between 78-810C. In an overall laboratory procedure, it is bound to have experimental, human, and instrumental errors. A potential error is when transferring the components from tube to tube, some could have fell. Another experimental error is a high percentage yield. This could happen if more of the mixture could have been collected than just the base or acid. If the solution has been collected at the right time and the right amount, it should be a percentage yield under 100% for it to be perfectly