Chapter 4 #21A Angle  [ENDORSED]

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

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Megan Phan 1K
Posts: 31
Joined: Fri Apr 06, 2018 11:04 am

Chapter 4 #21A Angle

Postby Megan Phan 1K » Wed Jun 13, 2018 9:05 pm

Why are the angles for C2H4 120 degrees instead of 109.5? I thought it was tetrahedral.

Andrew Evans - 1G
Posts: 47
Joined: Fri Apr 06, 2018 11:02 am
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Re: Chapter 4 #21A Angle  [ENDORSED]

Postby Andrew Evans - 1G » Wed Jun 13, 2018 9:06 pm

There's the double bond between the two carbons, so each carbon is bound to only three other atoms -> 3 regions of e- density -> trigonal planar 120º


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