The Student Room Group
Reply 1
Permanganate is purple, so when the solution turns pink/colourless, it suggests there's no permanganate ions, which is the end point.
Reply 2
Zygroth
Permanganate is purple, so when the solution turns pink/colourless, it suggests there's no permanganate ions, which is the end point.



hasnt it got to do with the presence of mn(II) ions?
Reply 3
sonic23
hasnt it got to do with the presence of mn(II) ions?


Well yeah, it's pale pink/colourless because of the 2+ ions, but you'd only be able to see the purple of the 7+ ions if they were still there :p:

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