Exp_9_Potentiometric_Titration - Abstract: In this...

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Abstract: In this experiment the mass of NaI was found out .069g. Also, mass NaI was calculated .029g. Introduction : Potentiometric methods comprise two main types of analysis: direct potentiometry and potentiomtric titration. In direct potentiometry, the electrode is immersed in the sample in the solution (analyte) and the potential is measured using pH meter, the activity or the concentration of ion is then deduced from the nernst equation. In potentiomertic titration, the sample solution is titrated with a suitable titrant and the end point is detected with an appropriate electrode. The change in the electrode potential due to the consumption of the analyte is plotted against the volume of the titant and then end point is located. To detect the equivalence point an electrode that responds to change in Ag + ion concentration during the titration can be used the potential of this electrode is measured after each successive addition of the titrating agent. A glass electrode can be used as the reference electrode in this
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This note was uploaded on 03/24/2011 for the course CHEM 323 taught by Professor Basimali during the Fall '09 term at King Fahd University of Petroleum & Minerals.

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Exp_9_Potentiometric_Titration - Abstract: In this...

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