Question

what is the principal of precipitation titration?​

Answer 1

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Answer 2

Answer:

1. A Presentation On Precipitation Titration Dept. Of Pharmacy

2. Precipitation Titration A special type of titremetric procedure involves the formation of precipitates during the course of titration. The titrant react with the analyte forming an insoluble material and the titration continues till the very last amount of analyte is consumed. The first drop of titrant in excess will react with an indicator resulting in a color change and announcing the termination of the titration. Example : AgNO3+ NaCl  AgCl + NaNO3

3. Characteristics of Precipitation Titration  They are fast and the stoichiometry is known and reproducibile, (no secondary reactions of interference.)  They are complete or can be quantified depending on the amount of solubility product (in general a precipitation titration is considered complete when Kps < 10-8)  An indicator can be used to find the equivalence point or titration end point which, for this type of titration, corresponds to when precipitation of the analyte under analysis is complete.