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SCAN0019 - Titration Measures the Concentration of an...

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Unformatted text preview: Titration Measures the Concentration of an Analyte - By determining the VOLUME of titrant needed to fully react with the analyte - We find the MOLES of titrant used and thus the MOLES of analyte present - Then we can calculate the concentration of analytc present in the original sample What Makes a Titration Work? A+B9C ch=[C]/[A][B] airflqflw‘fi V24 There must be a way of telling when enough (equivalent point) titrant has been added. Indicator soln, visual color change, inflection point are used to tell when the end point is v reached. Equivalence point ¢ end point. The balanced reaction is known and calculations are based on the stoichiometry of the reaction. Terms Related to Volumetric Analysis Equivalence point versus End-point. Blank titration. Primary standard and Standardization. Direct and Indirect Titration. - End-point Detection Strategies: - Acid-base indicators. - Metal ion indicators. - Inflection point. - First and Second derivatives. - Extrapolation, as in spectrometric, conductance titrations. ...
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