Question

Standardisation of iodine solution with sodium thiosulfate

Answer 1

0.05M iodine standardization against thiosulfate

If we have iodine solution of known concentration we can easily use it as a standard for thiosulfate solution standardization and vice versa. ... Add 5 ml of the starch solution. Titrate swirling the flask, until a blue color persists for 20 seconds.

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Answer 2

Answer:

The iodine solution, which is a golden-brown colour, can be titrated against sodium thiosulfate solution. The sodium thiosulfate solution is placed in the burette and, as it is added to the conical flask, it reacts with the iodine and the colour of the solution fades.

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