Negative poles of molecules

(Polar molecules, Non-polar molecules, etc.)

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Mrudula Akkinepally
Posts: 101
Joined: Wed Sep 30, 2020 9:31 pm

Negative poles of molecules

Postby Mrudula Akkinepally » Sat Nov 28, 2020 11:25 pm

How do we determine where the negative pole of a molecule is based on its structure?

Ethan Laureano 3H
Posts: 87
Joined: Wed Sep 30, 2020 9:58 pm

Re: Negative poles of molecules

Postby Ethan Laureano 3H » Sat Nov 28, 2020 11:58 pm

Take a look at which is more electronegative. The more electronegative atom is the area which you can consider a negative pole. More specifically, if the net vector of these poles would be where the negative pole is.

Jonathan Banh 1G
Posts: 60
Joined: Wed Sep 30, 2020 9:33 pm

Re: Negative poles of molecules

Postby Jonathan Banh 1G » Sun Nov 29, 2020 4:00 am

To determine where the negative pole of a molecule lies, you must look at the atoms' electronegativities and compare them to one another. Negative poles will form around the most electronegative parts of a molecule. If there are two relatively equal electronegativities, the negative pole will be somewhere in between the two atoms. A good example of this is question #10 on the Sapling homework. In COF2, we can quickly acknowledge that fluorine is the most electronegative atom present and thus, this implies the negative pole will form there. It is important to recognize that fluorine is more electronegative than oxygen. However, since there are two, the negative pole will lie somewhere in between the fluorine atoms. In COFH, we can acknowledge that the two most electronegative atoms in the molecule are oxygen and fluorine. As a result, the negative pole will be somewhere in between the oxygen and fluorine atom.

Ayesha Aslam-Mir 3C
Posts: 112
Joined: Wed Sep 30, 2020 9:43 pm

Re: Negative poles of molecules

Postby Ayesha Aslam-Mir 3C » Sun Nov 29, 2020 3:12 pm

How would you determine a molecule's polarity based on the shape if the lewis structure appears to have an equal distribution of the charges? How would you determine the pole through the structure?


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