determining dipole moment

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Chiara Berruto 1K
Posts: 29
Joined: Fri Apr 06, 2018 11:01 am

determining dipole moment

Postby Chiara Berruto 1K » Mon Jun 04, 2018 7:11 pm

What is the easiest way to identify dipole interactions to be able to determine the polarity of a molecule?

Betty Wolkeba section 1L
Posts: 32
Joined: Fri Apr 06, 2018 11:05 am

Re: determining dipole moment

Postby Betty Wolkeba section 1L » Mon Jun 04, 2018 10:32 pm

I like to look at the electronegativities of the atoms in the molecule to help. For example, with HCL, Cl is more negative than H so the covalent bond makes electrons to be pulled closer to the CL, making it more partial negative, and H as a result, a partial positive.

Yadira Flores 1G
Posts: 41
Joined: Wed Nov 15, 2017 3:01 am

Re: determining dipole moment

Postby Yadira Flores 1G » Tue Jun 05, 2018 10:47 am

Yes looking at the difference in electronegativity will help to determine which which, if any, the dipole moment will move towards as well as if they will cancel. If they do, then it's non-polar and if they don't it's polar.
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kellyz_1C
Posts: 33
Joined: Fri Apr 06, 2018 11:05 am

Re: determining dipole moment

Postby kellyz_1C » Thu Jun 07, 2018 8:43 pm

You have to take in the electronegativities of the atoms and the structure of the molecule to see which dipole vectors cancel out and which do not.


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