Asked Nov 15, 2019

What purpose does NH4HF2 serve when added to unknown analysis during an Iodometric titration?

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Expert Answer

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Step 1

Iodometric titrations are the type of titrations which an oxidizing agent is reacted against iodine. The evolved iodine molecules are further titrated with sodium thiosulphate solution. The endpoint is identified by starch solution.

Step 2

During iodometric titrations there are many interference molecules like silicates, oxides of Fe, Ca, Sr, Au, Pt, Al etc.  The addition of NH4...

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Inorganic Chemistry

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