I need a balanced chemical equation for the titration of potassium iodate (KIO3^2-) and sodium thiosulfate (Na2S2O3^2-).
This is what I have, but I was wondering if I should cancel the spectator ions:
Na2S2O3 (aq) + 2KIO3 (aq) --> K2S2O3 (aq) + 2NaIO3(aq)
1 answer
Surely you are confused a little or I just don't know what's going on. Usually something like KI is added to the KIO3 and that produces I2, then the I2 is titrated with Na2S2O3. To my knowledge, thiosulfate used as a titrant is used only for I2.