Dipole and Polarity  [ENDORSED]

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Alondra Loera 1A
Posts: 20
Joined: Fri Sep 25, 2015 3:00 am

Dipole and Polarity

Postby Alondra Loera 1A » Fri Jul 08, 2016 10:12 pm

If a molecular structure has dipole charges that do not cancel each other out does that mean that it is polar?

Shawn Schwartz 1D
Posts: 31
Joined: Fri Sep 25, 2015 3:00 am

Re: Dipole and Polarity  [ENDORSED]

Postby Shawn Schwartz 1D » Sat Jul 09, 2016 3:33 am

Alondra Loera 1A wrote:If a molecular structure has dipole charges that do not cancel each other out does that mean that it is polar?


Yes, if a molecular structure's dipole charges do not cancel out, then it is polar. For example, water is polar which is why it is the amazing solvent that it is on Earth and has so many uses and applications.

Water Structure (with polarity):

WaterDipole.gif
WaterDipole.gif (51.27 KiB) Viewed 569 times


The net dipole vectors created from the partial positives and negatives due to the electronegativity of each atom in the species is what determines where the dipoles are pointed and which direction the magnitudes of each of the charges are the most heavily pointed.

So, when the dipoles do not cancel out and the net dipole moment vector points more in one direction, then that species is indeed polar.

Ashley Bertholf 1E
Posts: 10
Joined: Fri Jul 15, 2016 3:00 am

Re: Dipole and Polarity

Postby Ashley Bertholf 1E » Sun Oct 30, 2016 12:09 pm

So does this mean that if an element is more electronegative it has a slightly negative charge?

Patrick Ricaflanca 2H
Posts: 21
Joined: Sat Jul 09, 2016 3:00 am

Re: Dipole and Polarity

Postby Patrick Ricaflanca 2H » Sat Dec 03, 2016 1:49 pm

If given a list of molecules, how would you determine which has the highest dipole moment? (Assuming they all have dipole moments)


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