T-shaped molecules

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

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Jordan_Wesson_2J
Posts: 59
Joined: Fri Sep 28, 2018 12:26 am

T-shaped molecules

Postby Jordan_Wesson_2J » Thu Nov 15, 2018 5:18 pm

Do T-shaped molecules with VSEPR formula AX3E2 and AX3E3 have the same angles? and if so why?

Brian Chhoy 4I
Posts: 66
Joined: Fri Sep 28, 2018 12:16 am

Re: T-shaped molecules

Postby Brian Chhoy 4I » Thu Nov 15, 2018 9:13 pm

I would think that they have very similar bond angles, ones that are <90 degrees due to the lone pairs. However the one with 3 lone pairs might have a slightly smaller angle. Although, I dont think we would need to know the specific angles for each, just that they are less than what you would expect if the lone pairs were bonded.

gwynlu1L
Posts: 62
Joined: Fri Sep 28, 2018 12:19 am

Re: T-shaped molecules

Postby gwynlu1L » Fri Nov 16, 2018 4:11 am

For the most part, you won't have to compare bond angles with lone pairs to other shapes with lone pairs - mainly you are one comparing the shapes with lone pairs to shapes with only bonding pairs (same arrangement but different shape due to lone pairs). The questions from the homework at least will either have you approximate the bond angles for each molecule, and not compare these angles to molecules with the same arrangement but a different amount of lone pairs.


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