Problem 3F.3c

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

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nehashetty_2G
Posts: 102
Joined: Thu Jul 25, 2019 12:15 am

Problem 3F.3c

Postby nehashetty_2G » Tue Nov 19, 2019 8:59 pm

How do you know the arrangement of the H and Cl for a compound like CH2Cl2?

Ruby Tang 2J
Posts: 102
Joined: Fri Aug 30, 2019 12:15 am

Re: Problem 3F.3c

Postby Ruby Tang 2J » Wed Nov 20, 2019 8:05 am

Generally when there is a carbon atom in the molecule it is in the center. You would arrange H and Cl around it tetrahedrally. It technically does not matter how you arrange the 2 H and 2 Cl atoms around the C atom in the Lewis structure, since in a tetrahedral molecular geometry it is impossible for two atoms to be directly opposite one another -- they will always be 109.5 degrees apart.

Cooper Baddley 1F
Posts: 100
Joined: Wed Sep 18, 2019 12:19 am

Re: Problem 3F.3c

Postby Cooper Baddley 1F » Wed Nov 20, 2019 10:26 am

The arrangement really doesn't matter in this case as all you would need to get from the lewis structure is that there are 4 areas of electron density around the central atom and that would make it have a tetrahedral shape and all the characteristics that come with it.


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