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Angles to know for test 2

Posted: Sun Nov 17, 2019 1:50 pm
by zfinn
Which specific VSEPR angle measurements do we need to know for test 2? Thanks!

Re: Angles to know for test 2

Posted: Sun Nov 17, 2019 1:53 pm
by Julianna Laurentano 4G
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.

Re: Angles to know for test 2

Posted: Sun Nov 17, 2019 2:48 pm
by Lauren Sanchez 3D
Do we need to know the angle degrees for all of the shapes as well?

Re: Angles to know for test 2

Posted: Sun Nov 17, 2019 2:53 pm
by Alex Chen 2L
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.