In the redox titration:_______
ce{MnO4- + 8 H+
a. 5 Fe^2+
b. Mn^2+ +
c. 4 H2O +
d. 5 Fe^3+}
the colour change which occurs is purple to colourless, because of the decreased concentration of permanganate ions. But doesn't this fail to account for the visible iron ions? \ce{Fe^2+(aq)} is green and \ce{Fe^3+(aq)} is brown.
Anyone have an explanation for why the end result is colourless and not brown solution?