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Understanding the Process of Titration in Chemistry

After recently completing acid-base titrations, AP Chemistry students in Jen Torline’s class expanded their learning to include a different type of titration, determining the concentration of an ion in a solution if the substance is easily oxidized or reduced. “This process is called oxidation-reduction or a redox titration,” said Torline. “My students determined the unknown concentration of the yellow iron sulfate solution by titrating it with standardized potassium permanganate until a faint purple color was obtained at the equivalence point.” Torline said understanding the process of acid-base titrations is an important lab technique to master because it is used in many instances, including pharmaceutical applications, testing of environmental samples, analyzing blood for various levels of substances, food analysis, and many more.