Dipole moments

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605011646
Posts: 14
Joined: Fri Sep 29, 2017 7:07 am

Dipole moments

Postby 605011646 » Tue Nov 28, 2017 2:24 pm

How do dipole moments cancel within a molecule?

RahilVaknalliDis3A
Posts: 17
Joined: Fri Sep 29, 2017 7:06 am

Re: Dipole moments

Postby RahilVaknalliDis3A » Tue Nov 28, 2017 2:34 pm

There are different cases when the dipole moments cancel out. You need to look at the VSEPR structure and the dipole moment of the individual bonds. If one of the individual bonds is more polar than another bond, there will be a net dipole moment, making the entire molecule polar. If all the bonds in the atom are polar and the entire molecule is non polar, it implies that each individual bond is equally polar and that the VSEPR structure causes the dipole moment to cancel out. Ex - CCl4 is non polar but Ch3Cl is polar. This is because although both have the same VSEPR structure, the dipole of the C-Cl bond is more than the C-H bond.

Rana YT 2L
Posts: 49
Joined: Thu Jul 27, 2017 3:01 am

Re: Dipole moments

Postby Rana YT 2L » Wed Nov 29, 2017 1:16 am

put succinctly, you need to look at the geometry of the bond and the electronegativity of the atoms within the compound in order to determine whether dipole moments do or do not cancel out


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