Results are out! Find what you need...fast. Get quick advice or join the chat
Hey! Sign in to get help with your study questionsNew here? Join for free to post

Intermolecular forces in Aldehydes and Alkanes

Announcements Posted on
    • Thread Starter
    • 2 followers
    Offline

    ReputationRep:


    Since, propane is symmetrical it is a non-polar molecule therefore it only has VDW forces. However, how do we determine that aldehydes have permanent dipole dipole forces?

    Thanks
    • 4 followers
    Offline

    ReputationRep:
    (Original post by xXxiKillxXx)


    Since, propane is symmetrical it is a non-polar molecule therefore it only has VDW forces. However, how do we determine that aldehydes have permanent dipole dipole forces?

    Thanks
    Ethanal molecules have a polar C=O bond, so are polar molecules. The oxygen atom always have a high electron density, so the molecules will have London Forces and permanent dipole-dipole forces.
    • Thread Starter
    • 2 followers
    Offline

    ReputationRep:
    (Original post by NutterFrutter)
    Ethanal molecules have a polar C=O bond, so are polar molecules. The oxygen atom always have a high electron density, so the molecules will have London Forces and permanent dipole-dipole forces.
    Thank you, so every aldehyde is polar (since every aldehyde contains a polar C=O bond)? Also, when writing the condensed structural formula for an alkene, can you leave out the double bond as below:

Reply

Submit reply

Register

Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?
  2. this can't be left blank
    this email is already registered. Forgotten your password?
  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. By joining you agree to our Ts and Cs, privacy policy and site rules

  2. Slide to join now Processing…

Updated: May 1, 2012
New on TSR

The future of apprenticeships

Join the discussion in the apprenticeships hub!

Article updates
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.