4.5 Shape

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

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Tatiana R Dis 3E
Posts: 20
Joined: Fri Sep 29, 2017 7:07 am

4.5 Shape

Postby Tatiana R Dis 3E » Mon Nov 13, 2017 5:55 pm

How is the shape regional planar if there are only two e- densities? Why is the bond angle 120° and not 180° if there are two lone e- pairs that cancel each other out

Guadalupe T 1E
Posts: 58
Joined: Fri Sep 29, 2017 7:04 am

Re: 4.5 Shape

Postby Guadalupe T 1E » Mon Nov 13, 2017 6:06 pm

Is regional planar the same as angular? The solutions manual says it is angular, I'm confused.

Shawn Patel 1I
Posts: 54
Joined: Thu Jul 27, 2017 3:01 am

Re: 4.5 Shape

Postby Shawn Patel 1I » Mon Nov 13, 2017 6:10 pm

There is a trigonal planar arrangement because there are actually 3 electron densities. There is a lone pair on the chlorine and two oxygens double bonded to it. Because there are 3 electron densities, and one of them is a lone pair, this makes the shape of the molecule angular. The electron pair pushes away the two oxygens making the angle slightly less than 120.

I hope this helps.

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