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In one trial of the standardization of a Na2S2O3 solution, a 10.00 mL volume of 5.00×10-3...

In one trial of the standardization of a Na2S2O3 solution, a 10.00 mL volume of 5.00×10-3 M KIO3 is pipetted into a 250 mL Erlenmeyer flask. The solution is titrated to the endpoint with 15.96 mL of the Na2S2O3 solution. What is the molar concentration of this sodium thiosulfate solution?

*Note: answer is not 1.57*10^-3 M*

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The give problem is a part of iodine cloack experiment.

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