Dipole Moments

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Dipole Moments

Postby Martina » Sun Oct 27, 2019 9:19 pm

How do you determine if there is a dipole moment, and what exactly causes it?

Heba Mengesha 3D
Posts: 50
Joined: Sat Sep 07, 2019 12:19 am

Re: Dipole Moments

Postby Heba Mengesha 3D » Sun Oct 27, 2019 9:24 pm

Dipole moments occur when there is a separation of charge and arise from differences in electronegativity. The larger the difference in electronegativity, the larger the dipole moment.

Ryan Yee 1J
Posts: 101
Joined: Sat Aug 17, 2019 12:16 am

Re: Dipole Moments

Postby Ryan Yee 1J » Mon Oct 28, 2019 12:13 am

Dipole moments result from differences in electronegativity. When the differences in electronegativity fail to cancel out (point in opposite directions) then the electronegativity difference in the molecule creates a dipole moment. CCl4 is nonpolar and does not have a dipole moment because each of the C-Cl bonds cancels each other out. H2O is polar and has a dipole moment due to its bent shape, which causes the H-O bonds to point away from the lone pair of electrons on oxygen, and creates an electronegativity difference and a dipole moment.

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