This laboratory investigation is purposed at familiarizing with the solvent extraction method of separation as a way of separating different components of the mixture as well as extracting the organic compound from the aqueous media. The experiment will also enable comparison of both single and multiple propanoic acid extractions from a solution that is aqueous into an organic phase and determining the propanoic acid concentration of the two phases after the removal. Physical extraction comprises isolation of a solute into inert and non-reactive hydrocarbons as well as substituted hydrocarbons which are reasonably free of complexities. Different diluents exert different levels of dissolution which is dictated by two key factors. The first aspect is partial dissociation of an acid in an aqueous solution while the second factor is dimerization in a hydrocarbon phase. Also, the carbon-oxygen donor liquids in water of hydration serve as an essential parameter in extraction.