January 13, 2025, 12:15:17 PM
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Topic: Acidic MnO4- solution reacts with ethanol, CH3CH2OH, to produce acetic acid.  (Read 17147 times)

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Offline NewtoAtoms

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Acidic MnO4- solution reacts with ethanol, CH3CH2OH, to produce acetic acid, CH3COOH.
I have to write a balanced equation, and this is what I have figured out thus far. 
I am having a real issue sometimes with balancing, so would someone people review my work, and tell me if I am correct? 

CH3CH2OH + MnO4- ----------> CH3CHOOH + MnO2 + OH-

In reviewing I can see that all the C, H, Mn, O are balanced on both sides. 
However what about the charges?
do both sides simply have a -1 charge?  Is it therefore equal or do I have to get each side to 0?

I am so grateful for your help.

NewtoAtoms

Offline Borek

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It is completely and nicely balanced as written, but it is wrong. Check acetic acid formula.
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Offline Nemesisof99

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I reckon the correct equation is,
CH3CH2OH + MnO4- ----------> CH3COOH + MnO2 + H2O
Balanced and seems correct. Is it?

Offline Borek

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Charges are not balanced, you have -1 on the left and 0 on the right.
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Offline AWK

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Where is the "acidic MnO4-"?
AWK

Offline Nemesisof99

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Yea, forgot that  :(
So how do I balance the charges in this equation. Pretty elementary but I don't think its MnO3-?

Offline Borek

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Offline Las

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Cant we balance this as a redox reaction? And doesnt MnO4- go to Mn2+, not MnO2?

Offline super_kaka1402

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I think the product of Mn7+ is up to the medium, if the medium(or catalysis) is acid, the product must be Mn2+, with the OH- medium, the product is MnO42-, and with the H2O medium is MnO2 !

Offline Las

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oh ok...then I guess it should be balanced in basic medium...adding OH- to balance oxygen and adding H2O to balance hydrogen..

Offline Borek

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Acidic MnO4- solution reacts with ethanol

then I guess it should be balanced in basic medium...

If the solution is acidic, why do you want to balance it as basic?
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Offline Las

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oops...I read the topic only now.. :D..I read this and decided it was basic medium because of the OH-...its pretty contradictory, you cant blame me for being a bit confused  ;)


CH3CH2OH + MnO4- ----------> CH3CHOOH + MnO2 + OH-

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