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Can Al+3 ions reduce ferric ions?

2006-06-05 14:44:37 · 3 answers · asked by Anonymous in Science & Mathematics Chemistry

3 answers

When something is reduced, it gains electrons. Whenever a reduction occurs, an oxidation must occur to something else (that object gives us electrons).

In order for ferric ions (Fe+3) to be reduced into ferrous ions (Fe+2), they must gain 1 electron each. If an Aluminum+3 ion were to due the reducing, that would mean that the Aluminum ion would have to be oxidized even further then the +3 it already is. Aluminum likes very much to be a +3 ion, it would be quite difficult for it to be oxidized further than that since at +3, it has a filled octet of electrons and is quite stable.

So in other words, no, Aluminum ions will not reduce Iron ions in solution.
The same cannot be said for Aluminum metal however. Aluminum metal is not yet oxidized and will very easily give up electrons to ion ions. However, it might not be so easy to simply have the Iron stop at +2, the Aluminum will likely want to reduce it all the way back to Iron metal and not Fe+2.

2006-06-05 14:51:33 · answer #1 · answered by mrjeffy321 7 · 0 0

Ferrous Ion

2016-09-29 02:39:20 · answer #2 · answered by ? 4 · 0 0

Al+3 cannot reduce ferric ions because to reduce ferric ions, Al+3 will have to get oxidized. Since Al+3 is already oxideized and cannot be oxidized further, it will not reduce the ferric ions to ferrous ions. If you add Al itself then ferric ions will get reduced to ferrous ions.

2006-06-05 15:12:14 · answer #3 · answered by Munir B 3 · 0 0

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