Angles to know for test 2

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

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zfinn
Posts: 106
Joined: Fri Aug 30, 2019 12:16 am

Angles to know for test 2

Postby zfinn » Sun Nov 17, 2019 1:50 pm

Which specific VSEPR angle measurements do we need to know for test 2? Thanks!

Julianna Laurentano 4G
Posts: 52
Joined: Wed Sep 18, 2019 12:21 am

Re: Angles to know for test 2

Postby Julianna Laurentano 4G » Sun Nov 17, 2019 1:53 pm

I would know the corresponding angle measurements for all the examples Dr. Lavelle went over during the past two lectures. I would also know what conditions make the angles slightly less than the usual measure.

Lauren Sanchez 3D
Posts: 52
Joined: Sat Aug 24, 2019 12:17 am

Re: Angles to know for test 2

Postby Lauren Sanchez 3D » Sun Nov 17, 2019 2:48 pm

Do we need to know the angle degrees for all of the shapes as well?

Alex Chen 2L
Posts: 86
Joined: Wed Sep 18, 2019 12:21 am

Re: Angles to know for test 2

Postby Alex Chen 2L » Sun Nov 17, 2019 2:53 pm

I don't think we have to memorize the bond angles for every shape, because for many shapes VSEPR can only predict the angle qualitatively rather than quantitatively. I do think it's good to memorize the angles with only bonding pairs (such as AX4 and AX5) though, since those will always have the same bonding angles regardless of what atoms are in it. For the rest you can just remember that the bond angles will be smaller for shapes that are similar but have lone pairs in place of the bonding pairs, since they have higher repulsion.


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