Kareem Ibrahim Lab Report original - Kareem Ibrahim Lab...

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Kareem Ibrahim Lab Report Conductmetric Titration and Gravimetric Determination of a precipitate Introduction Conductometry is a measurement of electrolytic conductivity to monitor a progress of chemical reaction. Conductmetry has notable application in analytical chemistry, where conductmetric titration is a standard technique. Conductmetric titration is a type of titration in which the electrolytic conductivity of the reaction mixture is continuously monitored as one reactant is added. The equivalence point is the point at which the conductivity undergoes a sudden change. Acid-base titrations and redox titrations are often performed in which indicators are commonly used to signal the end point by changing color e.g., methyl orange or phenolphthalein for acid base titrations and starch solutions for iodometric type redox process. However, electrical conductance measurements can also be used as a tool to locate the end point, e.g., in a titration of a H2SO4 solution with the base Ba(OH)2 The conductivity of a solution is dependent on several factors, including the concentration of the solute, the degree of dissociation of the solute, the valence of the ion(s) present in the solution, the temperature, and the mobility of the ions in the solution. In this experiment, the conductivity of the reaction between sulfuric acid and barium

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