2E.7

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

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Letty Liu 2C
Posts: 105
Joined: Fri Aug 09, 2019 12:16 am

2E.7

Postby Letty Liu 2C » Thu Nov 14, 2019 5:42 pm

Part C of this question asks "What values are expected for the OSCl and ClSCl bond angles?"

How do we calculate the bond angles, and why would OSCL and CLSCL have the same answer? Doesn't the difference in atomic attractions affect the resulting bond angle?

Anthony Hatashita 4H
Posts: 103
Joined: Wed Sep 18, 2019 12:21 am

Re: 2E.7

Postby Anthony Hatashita 4H » Thu Nov 14, 2019 7:41 pm

Bond angles are something you have to memorize, and I'm pretty sure the angles are determined by electron densities, not atomic attraction, but I'm not positive there.

MMckinney_4H
Posts: 61
Joined: Sat Sep 28, 2019 12:16 am

Re: 2E.7

Postby MMckinney_4H » Thu Nov 14, 2019 7:45 pm

There's a lone pair on the central atom that would alter the formation to be trigonal pyramidal (not tetrahedral or trigonal planar) making the bond angles OSCl slightly less than 109.5 degrees but the ClSCl would be less because they don't have the double bond repelling them more.

Drake Choi_1I
Posts: 58
Joined: Sat Aug 17, 2019 12:15 am

Re: 2E.7

Postby Drake Choi_1I » Wed Nov 20, 2019 2:14 pm

Although the answer for part C is "slightly less than 109.5", will we get credit for answering "109.5?"


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