dipole

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Ruiting Jia 4D
Posts: 65
Joined: Fri Sep 28, 2018 12:27 am

dipole

Postby Ruiting Jia 4D » Fri Nov 23, 2018 10:28 pm

in my understanding, a dipole is closely related to polarity - are there instances where a dipole would exist where polarity did not?

Hailey Boehm 2H
Posts: 71
Joined: Fri Sep 28, 2018 12:24 am

Re: dipole

Postby Hailey Boehm 2H » Fri Nov 23, 2018 10:35 pm

A dipole is charge separation. This is reliant on electronegativity. A large enough difference in electronegativity makes a molecule polar. When a molecule has no dipole moments, then it is not polar. A polar molecule has a net dipole (charge separation) because of the presence of opposing charges from polar bonds that are asymmetrical in the molecule.

StudentD2B
Posts: 43
Joined: Fri Sep 28, 2018 12:27 am

Re: dipole

Postby StudentD2B » Sat Nov 24, 2018 12:00 am

Dipole moments can exist where polarity does not if they cancel each other out due to molecular geometry in a polyatomic molecule. For example CO2. The oxygen is more electronegative, but the C-O bonds are Both linear so they cancel each other out. If you have version 7 of the textbook there is a chart that shows more molecules like this.

LG2019
Posts: 60
Joined: Fri Sep 28, 2018 12:27 am

Re: dipole

Postby LG2019 » Sun Nov 25, 2018 11:42 pm

Do we need to know how to draw dipoles for the test?

Hannah Pham 1D
Posts: 62
Joined: Fri Sep 28, 2018 12:19 am

Re: dipole

Postby Hannah Pham 1D » Mon Nov 26, 2018 11:26 am

Dipoles can cancel each other out so the molecule would not be polar.

isarose0
Posts: 62
Joined: Fri Sep 28, 2018 12:15 am

Re: dipole

Postby isarose0 » Mon Nov 26, 2018 1:07 pm

Dipoles occur due to partial charges on atoms in molecules

Ruiting Jia 4D
Posts: 65
Joined: Fri Sep 28, 2018 12:27 am

Re: dipole

Postby Ruiting Jia 4D » Sun Dec 02, 2018 10:53 pm

Luc Galaif wrote:Do we need to know how to draw dipoles for the test?


Yes, and I believe it will also be on the final.


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