Bond Angles Preference

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

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Lauren Huang 1H
Posts: 60
Joined: Fri Sep 28, 2018 12:16 am

Bond Angles Preference

Postby Lauren Huang 1H » Wed Nov 28, 2018 11:41 am

Would it be ok if I wrote the bond angles for 3 bonds pairs and 1 lone pair to be 107.5, and the bond angles for 2 bond pairs and 2 lone pairs to be 104.5? Or would writing "less than 109.5 degree" be preferred?

timschaeffer Dis 1J
Posts: 38
Joined: Fri Sep 28, 2018 12:18 am

Re: Bond Angles Preference

Postby timschaeffer Dis 1J » Wed Nov 28, 2018 11:49 am

I think that the "less than 109.5" method would be preferred because vsepr cannot predict exact bond angles when lone pairs are involved.

Kassidy Tran 1E
Posts: 77
Joined: Fri Sep 28, 2018 12:15 am

Re: Bond Angles Preference

Postby Kassidy Tran 1E » Wed Nov 28, 2018 12:41 pm

I think < 109.5 should be used, since its easier to make a mistake when memorizing all of those numbers, but in the end I don't think it actually matters.

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