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Lewis Dot Diagrams

  1. Dec 18, 2006 #1
    I'm having trouble drawing the diagrams:

    ex. dinitrogren pentaoxide

    [​IMG]


    is it right?
     
    Last edited: Dec 19, 2006
  2. jcsd
  3. Dec 18, 2006 #2

    Gokul43201

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    Let's start at the beginning. What is the chemical formula for dinitrogen pentoxide?
     
  4. Dec 18, 2006 #3
    N2P5......
     
  5. Dec 18, 2006 #4

    cristo

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    Where did you get P from? Oxide implys that the compound contains oxygen. Want to try again?
     
  6. Dec 18, 2006 #5
    Hint: you turned the "di" into "2"
    What does the prefix "penta" mean (it's a number)
     
  7. Dec 19, 2006 #6
    Sorry, I was in a real rush yesterday.

    N2O5

    I just don't know how to do the double and triple bonds.
     
  8. Dec 19, 2006 #7
    Try drawing it again with oxygen, by the way penta is 5.
     
  9. Dec 19, 2006 #8

    Gokul43201

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    This is mostly trial and error with molecules this big. You'll get an intuition for what makes the right structure as you spend more time with more molecules, drawing their structures.

    For now, since there's an odd number of O-atoms, you might guess that there's 1 or 3 O-atoms between the 2 N-atoms, and the rest on the sides. Try the first option and show us what you come up with...
     
  10. Dec 19, 2006 #9
    how would i connect them ?
     
  11. Dec 19, 2006 #10
  12. Dec 19, 2006 #11

    Gokul43201

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    That's a good attempt, but you missed one electron on the third O-atom! Also, you've put 2 O-atoms between the N-atoms. Try again with only 1 O-atom between the pair of N atoms: (O2) N O N (O2).
     
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