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Thread: BASIC organic chemistry question (grade 10 high school)?

  1. #1 BASIC organic chemistry question (grade 10 high school)? 
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    This is for a special ISU we have to do to prepare us for next year, so I'm guessing it's quite basic. If you could solve even one or part of a question I would appreciate it, I don't really care how long it is or anything, ANY help is good...

    These are the questions I don't know how to solve...
    * by the way I don't know how to make typed subscripts so consider all the numbers subscripts
    1. Name the following molecule: (ignore .ss))
    ...............CH3
    ..................|
    CH3 - CH -CH - C - CH2 - CH3
    ...........|............||
    .........CH3.......CH - CH2 - CH2- CH3
    2. You have seen that alkenes such as C6H12 can have isomers. Draw condensed structural formulas for the isomers of C4H8. Then name the isomers. (explanation is fine)
    3. Draw a condensed structural diagram for the compound
    5-ethyl-3,4,6-trimethyl-2-octene
    also...
    Can someone explain the concept of isomers to me?
    thank you!!!


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  3. #2  
    Reptile Dysfunction drowsy turtle's Avatar
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    Isomers are molecules which have the same empiricle formula but have a different structure.

    E.G. Butane and methyl-propane

    Both are C4H10, but they have different structures:

    Butane:

    C-C-C-C


    methyl-propane:

    ....C
    ....|
    C-C-C


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  4. #3 Re: BASIC organic chemistry question (grade 10 high school)? 
    Reptile Dysfunction drowsy turtle's Avatar
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    Quote Originally Posted by rachelle
    1. Name the following molecule: (ignore .ss))
    ...............CH3
    ..................|
    CH3 - CH -CH - C - CH2 - CH3
    ...........|............||
    .........CH3.......CH - CH2 - CH2- CH3
    4-ethyl-2,3-dimethyl-4-octene.

    An awkward one, really.

    Quote Originally Posted by rachelle
    2. You have seen that alkenes such as C6H12 can have isomers. Draw condensed structural formulas for the isomers of C4H8. Then name the isomers. (explanation is fine)
    Methylpropene,1-butene and 2-butene. I'll let you draw them.

    Quote Originally Posted by rachelle
    3. Draw a condensed structural diagram for the compound
    5-ethyl-3,4,6-trimethyl-2-octene
    Using all the above, you should be able to do this yourself. In fairness, I shouldn't have helped you with this at all, since it's clearly homework.
    "The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair." ~ Douglas Adams
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