Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: How many isomers does C4H9Br have?

  1. Oct 19, 2004 #1
    The book says 4, but isnt there 5?

    1) CH3-CH2-CH2-CH2-BR

    2) CH3-CH2-CH-CH3

    3) CH3-CH-CH2-BR

    4) CH3-CH2-CH-BR

    5) CH3-C-CH3

    ugh..sorry i cant get the computer to place the atoms in the right place, but u guys get the picture
    Last edited: Oct 19, 2004
  2. jcsd
  3. Oct 19, 2004 #2


    User Avatar
    Science Advisor
    Gold Member

    I think 2 and 4 are the same... Both can be read as 2-bromobutane, please look at them carefully, you'll see. I don't consider enantiomer formation, as there should be 2S-2-bromobutane and 2R-2-bromobutane, because they are not isomers, enantiomers, i.e., optical isomers.

    About drawing formulae, I am not sure, but our moderator can show us how to arrange LateX to draw these formulae. It is possible, I know. If it isn't, it would be better for you to obtain some freeware chemical drawing software like ChemSketch or Isıs-Draw.
    Last edited: Oct 19, 2004
  4. Oct 19, 2004 #3
    it have only two isomers
  5. Oct 2, 2007 #4

    :):approve::rofl::smile::!!) your a real o:)
    this was a lot of help!
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook