78. Solving a chemistry problem

78. Solving a chemistry problem

Calculate the concentration of sodium thiosulfate solution (mol/l), if 20.00 ml of potassium bichromate solution with titer T(K2Cr2O7/Fe) = 0.005584 g/ml after adding KI releases such an amount of I2 that is titrated by 32.46 ml of thiosulfate solution sodium.

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