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hey guys and girls, i'm having some serious problems with this redox reaction titration thing i just did!

Basically i titrated a sodium thiosulphate solution with potasium iodate(v), sulphuric acid, potassium iodide and some starch.

I've worked out the molarity of my sodium thiosulphate solution is 1.54 but i have no idea how to get the molarity of the potassium iodate(v)!!

we've been given these equations:

IO3- + 6H+ + 5I- = 3I2 + 3H2O

I2 + 2S2O3 2- = 2I- + S4O6 2-

(sorry about the equals instead of arrows and the lack of super/subscript!!)

but I have no idea what to do with them!!

my teachers seem to have missed something vital when explaining all this to us and i really need some help!!

thanks in advance!

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# Totally stuck

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