А00000140 10. a) Potassium iodide was added in excess t
10. a) Potassium iodide was added in excess to 20.00 cm3 of a solution of potassium dichromate with a molar concentration of 0.0200 mol/dm3, the released iodine was titrated with a solution of sodium thiosulfate; V (Na2S2O3) = 21.22 cm3. Calculate the titer of sodium thiosulfate solution.
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