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anonymous

  • one year ago

General Chemistry Challenge Problem: Molecular Geometry and Bonding Theories A compound composed of 2.1% H, 29.8% N, and 68.1% O has a molar mass of approximately 50g/mol. (A). What is the molecular formula of compound? (B). What is its Lewis structure if H is bonded to O? (C). What is the geometry of the molecule? (D). What is the hybridization of the orbitals around the N atom? (E). How many sigma and how many pi bonds are there in the molecule?

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  1. sweetburger
    • one year ago
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    What do you think the first step is here?

  2. anonymous
    • one year ago
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    I know the answer. I want to see if you know. You can just tell me the steps. Free medal and fan.

  3. sweetburger
    • one year ago
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    (A) Oh ok well to find the molecular formula just take integer multiples of the masses of each specific element and divide by 50 then multiply by x100 to find your percentage value if it matches up you have the right molecular formula i believe this comes out to HNO2

  4. anonymous
    • one year ago
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    Yes, that is correct. Element grams given x(mol/actual gram)

  5. sweetburger
    • one year ago
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    (B) |dw:1439532802139:dw| Lewis structure is this i thnk

  6. sweetburger
    • one year ago
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    2 lone pairs on each oxygen

  7. sweetburger
    • one year ago
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    (C) The geometry would be im assuming bent but that hydrogen is throwing me off.

  8. sweetburger
    • one year ago
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    forgot the lone pair on the nitrogen in the lewis structure

  9. sweetburger
    • one year ago
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    kind of important

  10. sweetburger
    • one year ago
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    (D) 3 areas of electron density so im pretty sure sp2 hybridization

  11. sweetburger
    • one year ago
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    (e) So there would be 3 sigma bonds and 1 pi bond

  12. sweetburger
    • one year ago
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    |dw:1439533146170:dw| edited lewis structure

  13. sweetburger
    • one year ago
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    so did i get them right?

  14. anonymous
    • one year ago
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    B) is correct. C) yea they just want the electron domain. Oops forgot to tell you. Is it trigonal planar or tetrahedral? D) is correct E) is correct

  15. anonymous
    • one year ago
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    electron domain geometry*

  16. sweetburger
    • one year ago
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    ahh that suddenly makes a lot of sense

  17. anonymous
    • one year ago
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    Which of the 2 do you think it is?

  18. anonymous
    • one year ago
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    Trigonal planar and tetrahedral both have bent as their molecular geometry.

  19. sweetburger
    • one year ago
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    I think it is trigonal planar due it only having 1 lone pair, but my knowledge of this has become quite rusty.

  20. anonymous
    • one year ago
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    Yea it is. It has 3 electron domains on the central atom N.

  21. sweetburger
    • one year ago
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    and it actually fits a trigonal planar geometry if you look at it.

  22. anonymous
    • one year ago
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    Not 4 because H is not bonded to N. Nice job! All correct!

  23. sweetburger
    • one year ago
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    alrighty cool :P

  24. anonymous
    • one year ago
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    I have more challenging questions, but most of them are in yahoo answers. Took me a while to figure what problems to post.

  25. anonymous
    • one year ago
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    I'll post another in like 15 minutes if you got time and want to solve

  26. sweetburger
    • one year ago
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    i mean i didnt google that question and sure sounds good

  27. sweetburger
    • one year ago
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    id rather make a mistake and learn from what i miss

  28. anonymous
    • one year ago
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    Yea, I know you did not because you had a fast response rate and I picked the one that I could not find in Google lol.

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