How many moles of na2s2o3 react with each mole of kio3 used, Ask an Expert

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1: how many moles of na2s2o3 react with each mole of kio3 used in the standrdization?

2: what is the oxidition state of a cl in ocl- ,and s in na2s2O3?

3: if 13.75 ml of Na2S2O3 solution is required to titrate the iodine from 19.85ml of 0.0115M KIO3solution and excess KI what is the molarity of the na2s2o3 solution?

4: how many grams of sodium thiosulfate are needed to make 300 ml of 0.050M solution?

5: is (IO3-) an oxidizing or reducing agent?

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