Rates of reaction - kinetics (A2)
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My question concerns the reaction between iodide ions and hydrogen peroxide. I know the mechanism for this reaction, but my A2 investigation uses the iron(II) sulphate as a catalyst and I am going to be changing the concentration of this catalyst, to see the effect this has. What is the mechanism of the reaction with the catalyst involved?
090208
Ulex writes
I think what is expected to happen is that the peroxide oxidises the iron(II) ions to iron(III) ions. The iron(III) ions then react with the iodide ions, oxidising them to give iodine. Iron(II) ions are reformed. These can then react with more peroxide and so on.
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updated: 09 February 2008
