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November 26, 2014

Homework Help: chemistry

Posted by unknown on Thursday, November 17, 2011 at 12:21am.

in an experiment 5.00ml of 0.1440 mol L^1- aqueos KIO3 was reacted with an excess of aqueous iodide and the molecular iodine I2, Formed was titrated against 0.1000mol L^1- aqueous S2O3^2- the equation for the titration reaction is:

I2(aq)+ 2 S2O3^2-(aq)---->S4O6^2-(aq)+ 2I^-1(aq)

determine the molar ratio of iodine molecules by dividing each mole quantity by the lowest mole quantity. express this as a ratio of integers

IO3- : I2

using this ratio balance the equation please

__IO3^-(aq) + ____ I^-(aq)+____H^+(aq)------>_____ I2(aq)+_____H2O(l)

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