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Topic: Help Balancing Redox Equation Using Half-reaction Method  (Read 3689 times)

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Offline Shaftell

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Help Balancing Redox Equation Using Half-reaction Method
« on: April 08, 2010, 10:09:52 PM »
Hello everyone

I need help balancing this equation please.

As2S3+NO3-----> NO+ SO4^2-+H3AsO4

I know how to balance them when they're simple but I'm not sure what to do with the As2S3, So4, and the H3AsO4

Any help would be appreciated.

Thank you!
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Offline Schrödinger

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Re: Help Balancing Redox Equation Using Half-reaction Method
« Reply #1 on: April 08, 2010, 10:18:00 PM »
Split the reaction into 2 parts
As2S3  :rarrow: H3AsO4 + SO42-

NO3-  :rarrow: NO

Now proceed
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Offline AWK

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Re: Help Balancing Redox Equation Using Half-reaction Method
« Reply #2 on: April 09, 2010, 01:34:23 AM »
As2S3 can be dissolved only in medium concentrated or concentrated HNO3 and the NO2 is formed
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Offline Schrödinger

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Re: Help Balancing Redox Equation Using Half-reaction Method
« Reply #3 on: April 09, 2010, 02:04:46 AM »
Ah... didn't notice that. :-[
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"Destiny is not a matter of chance; but a matter of choice. It is not a thing to be waited for; it is a thing to be achieved."
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