Polar and Non-Polar

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

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Joined: Fri Sep 28, 2018 12:28 am

Polar and Non-Polar

Postby MichelleRamirez_2F » Wed Nov 28, 2018 4:10 pm

When we are trying to answer whether a molecule is polar or non polar how do we determine the direction of the bond?

Tinisha 1G
Posts: 69
Joined: Fri Sep 28, 2018 12:17 am

Re: Polar and Non-Polar

Postby Tinisha 1G » Wed Nov 28, 2018 4:21 pm

You have to look at the electronegativities of the atoms. In a bond, one atom's electrons will be pulled towards the atom that has a greater electronegativity, resulting in a net partial charge. Do this for each atom. If all of the attached atoms are the same and their partial charges cancel out, then it is non polar. Many times when the attached atoms are not the same, it may be polar. You also have to look at the partial charges as well and see if they cancel out.

Christopher Wendland 4F
Posts: 30
Joined: Fri Sep 28, 2018 12:29 am

Re: Polar and Non-Polar

Postby Christopher Wendland 4F » Wed Nov 28, 2018 4:22 pm

See if it is symmetrical by figuring out the VSEPR shape.

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