How to standardize 0.025 N solution of sodium thiosulphate with potassium dichromate?

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Nafees Mohammad

https://labmonk.com/preparation-and-standardization-of-sodium-thiosulphate

See the attached document

Anup Kumar Gupta

To standardise 0.025 N sodium thiosulfate:

Take 100 mL distilled water in conical flask

Add 2g of Potassium di-iodide

Add 10 mL of potassium di chromate

And lastly add 2 mL of Sulfuric acid

Now titrate this with sodium thiosulfate

Reading in burette should be 10 to confirm .025 N of thiosulfate.