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Topic: chemistry of K3[Fe(C2O4)3]  (Read 2901 times)

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Offline aresofwar

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chemistry of K3[Fe(C2O4)3]
« on: October 22, 2013, 01:10:20 AM »
before carrying out the photoreduction, 1.5ml of 2M sulfuric acid is added to K3[Fe(C2O4)3].
what is the purpose of the addition of the sulfuric acid? cant seem to figure this part...
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Offline antimatter101

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Re: chemistry of K3[Fe(C2O4)3]
« Reply #1 on: October 22, 2013, 01:13:16 AM »
Show your woking. That's a forum rule. What is photoreduction? How does it relate to topic?
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Offline aresofwar

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Re: chemistry of K3[Fe(C2O4)3]
« Reply #2 on: October 22, 2013, 01:23:43 AM »
ok,
Fe3+ is reduced to Fe2+, while the oxalate is oxised to CO2.
2[Fe3+(C2O4)2-]+ + (C2O4)2- + 4H2O → 2Fe2+(C2O4)2-.2H2O + 2CO2.

photoreduction is when a complex absorbs a photon of light and decompses to give my [Fe3+(C2O4)2-] and CO2 in this case.

now how does addition of the sulfuric acid come to play here?
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Offline Hunter2

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Re: chemistry of K3[Fe(C2O4)3]
« Reply #3 on: October 22, 2013, 02:40:02 AM »
The whole reaction takes place in acidic environment.
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