1017

非常急~~~請各位幫忙!!!分析化高手請進!!!!

A 0.1017g sample of KBrO3 was dissoved in dilute HCl and treated with an unmeasured excess of KI.The liberated iodine required 39.75mL of a sodium thiosulfate solution.Calculate the molar concentration of the Na2S2O3 .請各位幫忙~~~~很急!!!!謝謝~~~~
BrO3- 6I- 6H --

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    sodium thiosulfate solution molar concentration Na2S2O3 liberated iodine mol KBrO3 I2 dissoved Br sample
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