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Course Reader page46 example of "Gold and Nitric Acid"

Posted: Sat Feb 07, 2015 4:31 pm
by Joyce 3H
Why NO3(2-) can be reduced to NO rather than NO2 or N2 in the half reaction? I believe it is somehow related to stability of the product but I am not sure how to explain it thoroughly.
Thank you in advance!

Re: Course Reader page46 example of "Gold and Nitric Acid"

Posted: Sun Feb 08, 2015 8:34 am
by Regina Chi 2K
I don't think you have to stress over this because we will usually be given the equations such that we are either given the half-reactions or the overall equation (you will have the find the half-reactions from the overall equation). I think in the course reader, Professor Lavelle just happened to have these half-reactions as an example because that is how the creation proceeds. Also, you can always look at the chart for possible half-reactions to use!