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Homework Help: Reaction mechanism

  1. Mar 15, 2007 #1
    1. The problem statement, all variables and given/known data

    I have been working at this for about two days now and haven't really gotten any further. Unfortunately my teacher is away but last time he checked it over he said I was 'almost there' so a few extra nudges in the right direction would be appreciated!

    I'm trying to write out the reaction mechanism for the formation of acid rain from atmospheric nitrogen. I know the general equations to go through but when it comes to showing the movement of electrons with 'curly arrows' I get stuck!

    2. Relevant equations

    1. O + N≡N → N=O + N

    2. N + O=O → O + N=O

    3. 2N=O + O=O → 2O=N=O

    4. N=O + O=O=O → O=O + O=N=O

    5. O=N=O + O-H → H=O=N=O

    3. The attempt at a solution

    I know that electrons from the triple bond of the nitrogen in step 1 move to one N atom and this means that the O is attracted to the other N and they form NO.
    I can also complete number 2 (i think) as it is the same as above, with different compounds. It's number 3 onwards that cause the problems.

    any help appreciated!
  2. jcsd
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