Quick Run-Through

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Jasmine 2C
Posts: 125
Joined: Wed Sep 18, 2019 12:18 am

Quick Run-Through

Postby Jasmine 2C » Sun Nov 17, 2019 2:04 pm

Can someone give explanations of each of these intermolecular forces and how to identify them? I'm having trouble understanding how to distinguish them and how to find them in Lewis structures. Please provide examples if possible! Thank you!

Fiona Latifi 1A
Posts: 77
Joined: Sat Sep 14, 2019 12:16 am

Re: Quick Run-Through

Postby Fiona Latifi 1A » Sun Nov 17, 2019 2:15 pm

Ion-ion interactions are between two ionic molecules. Ion-dipole interactions are between an ion and a polar molecule. Dipole-dipole interactions are between two polar molecules. Dipole-induced dipole interactions are between a polar molecule and a non-polar molecule.

Cassidy Kohlenberger 3D
Posts: 51
Joined: Wed Sep 18, 2019 12:19 am

Re: Quick Run-Through

Postby Cassidy Kohlenberger 3D » Sun Nov 17, 2019 3:24 pm

An example of an ion-ion interaction is NaCl, as this is ionic bonding (their charges cancel). An example of an ion-dipole interaction is when Na bonds to a water molecule, as Na is the ion and there are dipole interactions between the O and H in the water molecule. An example of a dipole-dipole interaction is CO, where C is delta positive and O is delta negative; there's a difference in electronegativity and the electrons in the molecule will be drawn to the O. An example of hydrogen bonding is when water molecules bond to other water molecules. Finally, induced-dipole interactions (London Dispersion Forces) are in all molecules as all atoms have an electron cloud that can create a temporary dipole.


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