1 / 11

Intermolecular Attractions: Attractions between molecules

Intermolecular Attractions: Attractions between molecules. Hydrogen Bonds. Van der Waals Forces Dipole interactions Dispersion forces. a dipole. O. H. H. A polar molecule : Water. A non-polar molecule: CO 2. Hydrogen bonds : when hydrogen makes a weak bond with the

toril
Download Presentation

Intermolecular Attractions: Attractions between molecules

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Intermolecular Attractions: Attractions between molecules Hydrogen Bonds • Van der Waals Forces • Dipole interactions • Dispersion forces

  2. a dipole O H H A polar molecule: Water A non-polar molecule: CO2

  3. Hydrogen bonds: when hydrogen makes a weak bond with the negative pole of other molecules Click on the pictures above to go to a sites that shows a lot of water forming hydrogen bonds

  4. This picture shows another view of hydrogen bonding between water molecules

  5. Click on the pictures above to see how water, a polar molecule, dissolves an ionic compound due to it polar nature.

  6. ammonia in water Hydrogen bonds: a type of intermolecular bonding

  7. Click on the picture above to see an animation of ammonia and water interacting together.

  8. Van der Waals Forces 1. dipole interactions Another hyperlink to tutorials and animations A hyperlink to an advanced page showing a couple of animations including how di-pole attractions occur and london forces.

  9. 2. Dispersion Forces: tiny momentary dipoles in molecules due to electron disturbances caused by the atoms around them. These subtle forces give enough attraction between some molecules that they can form liquids and solids at low temperatures.

  10. One final type of covalent bonding: Network solid (covalent bonding in 3D) buckyball diamond graphite Link to see a picture of a diamond. An example of network solid covalent bonding. silica SiO2 http://www.ill.fr/dif/3D-crystals/salt.html

More Related