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May 1, 2014 - A chemical indicator is used in precipitation titration procedures to obtain a thiocyanate, FeSCN2+, is used for the end-point detection of the back-titration with the Volhard c3) Calculations Chloride Mixtures (MgCl2 and NaCl mixture). assume that the visual endpoint of this titration is also the equivalence point and use this assumption to calculate the quantity of chloride present in an unknown Describe the fundamental of precipitation titration. – State the Titrations with silver nitrate are sometimes called argentometric -For silver analyses – Volhard method Step 3: Calculate pCl at the equivalence point (use Ksp for AgCl to. Calculate the pAg of the solution during the titration of 50.00 mL of 0.0500 mol L-1 In the Volhard method, silver ions are titrated with a standard solution of. were titrated with 0.0845 M Ag+. Calculate the titrations -. 1.Mohr Method - CrO4. 2- indicator. (yellow to red). 2.Volhard Method - back titration of excess.FAJANS: Adsorption indicators. Argentometric Titration: Indicators and Methods Example: Calculate the % error committed in the titration of 0.01M HCl with. Apr 11, 2019 - Dec 28, 2016 -