VSEPR

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

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Brett Lieuallen 2A
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VSEPR

Postby Brett Lieuallen 2A » Fri Nov 13, 2020 2:44 pm

Can the VESPR model be used to determine polarity?

Alen Huang 2G
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Re: VSEPR

Postby Alen Huang 2G » Fri Nov 13, 2020 3:40 pm

Yes I believe so! The symmetry of the structure is important in determining whether the whole molecule is polar or not because two polar bonds can cancel each other out if they are opposite of each other and create a nonpolar molecule overall.

Jordan Tatang 3L
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Re: VSEPR

Postby Jordan Tatang 3L » Fri Nov 13, 2020 4:36 pm

Yup! Like Alen said the VSEPR model shows you if the molecule is symmetrical or asymmetrical and therefore non-polar or polar, respectively.

Jordan Tatang 3L
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Re: VSEPR

Postby Jordan Tatang 3L » Fri Nov 13, 2020 4:36 pm

Yup! Like Alen said the VSEPR model shows you if the molecule is symmetrical or asymmetrical and therefore non-polar or polar, respectively.

Shrinidhy Srinivas 3L
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Re: VSEPR

Postby Shrinidhy Srinivas 3L » Fri Nov 13, 2020 6:02 pm

Yes! The VSEPR model helps show the shape and structure and by doing so, shows you the polarity of the model. One of the examples was the octahedral model that Lavelle talked about in lecture today!

Sabine Salvucci 2E
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Re: VSEPR

Postby Sabine Salvucci 2E » Fri Nov 13, 2020 6:18 pm

Yep! The VSEPR model helps show the 3D shape of the molecule and therefore whether a molecule is symmetrical or asymmetrical. The symmetry of a molecule is directly related to its polarity, with symmetrical molecules being non polar and asymmetrical molecules being polar. Hope this helps!

Jiapeng Han 1C
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Re: VSEPR

Postby Jiapeng Han 1C » Fri Nov 13, 2020 11:02 pm

Actually molecular shape is one very effective way to determine polarity. Typically, symmetrical molecule is non-polar while non-symmetrical molecule is polar because the dipoles can't cancel out.

Lizbeth Garcia 1F
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Re: VSEPR

Postby Lizbeth Garcia 1F » Sat Nov 14, 2020 12:24 am

Yes, the VSEPR model helps determine the shape and structure of a molecule which then helps determine polarity.

Juliet Carr 1F
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Re: VSEPR

Postby Juliet Carr 1F » Sun Nov 15, 2020 10:17 am

It is really important to consider VSEPR when determining polarity because VSEPR will show symmetry in the shape of the molecule. So, if there are unequal pulls on the central atom in different directions by the dipole moments surrounding it, then the dipole moments cannot cancel and the molecule is polar.

Shalyn Kelly 3H
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Re: VSEPR

Postby Shalyn Kelly 3H » Sun Nov 15, 2020 10:43 am

Hi! As those above have stated: yes, VSEPR helps determine the polarity of a molecule because the theory is that electron pairs and lone pairs repel each other, thus making a more symmetrical shape for the molecule (non-polar) vs. having awkward pulls and skewing the shape making the molecule polar.
Take CO2 where the molecule's shape is linear because the two O bits are repelling each other and trying to stay as far away from each other as possible, making the molecule symmetrical.

Abraham De Luna
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Re: VSEPR

Postby Abraham De Luna » Sun Nov 15, 2020 9:58 pm

Yes, I believe that it can help determine polarity because because VSPER helps determine the shape and structure of the molecule.

Madeline Marron 1I
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Joined: Wed Sep 30, 2020 10:01 pm

Re: VSEPR

Postby Madeline Marron 1I » Sun Nov 15, 2020 10:04 pm

yes! the VSEPR model can be used to measure polarity


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