Sunday, July 9, 2017

4.26: Understand How to Draw the Structural and Displayed Formulae for Alkenes with Up to Four Carbon Atoms in the Molecule, and Name the Unbranched-Chain Isomers



ALKENES: Homologous series of hydrocarbon compounds containing double Carbon bonds - has the general formula CnH2n
ISOMERS: Compound that has the same molecular formula but different displayed formulae
s
ALKENES WITH UP TO FOUR CARBON ATOMS IN MOLECULE
s
ALKENE
STRUCTURAL FORMULA
DISPLAYED FORMULA
   ETHENE
CH2 = CH2
   PROPENE
CH2 = CH2CH3
   BUTENE
CH2 = CHCH2CH3







CH3CH = CHCH3
at
Labels: ,

6 comments:

  1. John_SmithJune 10, 2018 at 7:29 AM

    typo in the syllabus point

    ReplyDelete
  2. AnonymousSeptember 17, 2018 at 11:18 PM

    there's an extra hydrogen for propene

    ReplyDelete
    Replies
    1. LeaderOfPiesDecember 22, 2018 at 9:53 AM

      No there isn't, since Carbon needs 4 bonds and there is a double bond between the carbons and a single bond from each hydrogen.

      Delete
    2. UnknownApril 11, 2019 at 8:45 AM

      There are 5 bonds on the middle carbon tho...

      Delete
    3. yosefMay 13, 2019 at 11:43 AM

      This comment has been removed by the author.

      Delete
    4. yosefMay 13, 2019 at 11:44 AM

      That is the problem. Propene cannot have 7 hydrogens because that violates the general formula for Alkenes. Also there's the five bond in the middle carbon error.

      There should only be one hydrogen atom bonded to the middle carbon.

      The correct structural formula of propene is CH2=CH-CH3

      Delete

Subscribe to: Post Comments (Atom)