1. Solving a chemistry problem

1. Solving a chemistry problem

2. To standardize the Na2S2O3 solution, a sample of 0.185 g of dry K2Cr2O7 was dissolved in diluted HCl, excess KI was added and the released I2 was titrated, using 44.2 ml of the reagent. Calculate the molar concentration of the Na2S2O3 solution.

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