Chemistry Forum

Posted: **Sat Feb 02, 2013 2:44 am**

FeCrO₄+KOH=?

Posted: **Mon Feb 04, 2013 6:37 pm**

FeCrO4+KOH = ?

The potassium does not react; it's there to make the solution alkaline.

In Alkaline conditions the iron will be oxidized as follows.

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3 Fe&#123;2+&#125; &#40;aq&#41; + CrO4&#123;2-&#125; &#40;aq&#41; + 4 H2O &#40;l&#41; = Cr&#40;OH&#41;3 &#40;s&#41; + 3 Fe&#123;3+&#125; &#40;aq&#41; + 5 OH&#123;-&#125; &#40;aq&#41;

Or...

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9 FeCrO4 + 12 H2O = 5 Fe&#40;OH&#41;3 + 3 Cr&#40;OH&#41;3 + 2 Fe2&#40;CrO4&#41;3

Chemistry Forum

FeCrO4+KOH=?

FeCrO4+KOH=?

Re: FeCrO4+KOH=?