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Mr. Yahya Maharmeh says that the oxidizing agents such as potassium dichromate are acidified to keep the solution acidic, so to provide hydrogen ions since the reaction needs alot of protons

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Effect of oxidizing agents on iodometric titration?

Oxidizing agents can interfere with iodometric titration by oxidizing iodide ions to iodine prematurely, leading to an inaccurate measurement of the analyte's concentration. This interference can be minimized by adding a reducing agent to the titration solution to consume any excess oxidizing agent before reacting with the iodide ions. Additionally, careful selection of the titration conditions and proper sample preparation can help mitigate the effect of oxidizing agents on the titration results.


Why oxalic acid is acidified before titration?

Oxalic acid is acidified before titration to provide a medium that favors the reaction of the analyte with the titrant while minimizing interference from other substances. Acidification ensures that the oxalic acid dissociates fully to its acidic form, allowing for a more accurate and precise titration.


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What is iodometric titration?

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Why potassium oxalate is acidified before titration?

If the temperature is too low (below 55 degrees celsius), the interaction between the oxalate and the potassium permanganate will move too slow as to be used as a practical lab experiment. *** Above 60 degrees celsius, oxalate acid begins to decompose, so it's important to stay in this range.