H20

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

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Abby De La Merced 3F
Posts: 30
Joined: Fri Sep 28, 2018 12:24 am
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H20

Postby Abby De La Merced 3F » Wed Nov 14, 2018 7:36 pm

What kind of molecular shape would H20 take on? Is it tetrahedral or bent and why? I seemed to get confused about this example in section today.

Lia Inadomi 1I
Posts: 62
Joined: Fri Sep 28, 2018 12:15 am

Re: H20

Postby Lia Inadomi 1I » Wed Nov 14, 2018 7:40 pm

The electron geometry is tetrahedral whereas the molecular geometry is bent. This is because oxygen has two lone pairs and two covalent bonds.

Abby De La Merced 3F
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Joined: Fri Sep 28, 2018 12:24 am
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Re: H20

Postby Abby De La Merced 3F » Wed Nov 14, 2018 7:43 pm

Thank you! Can you explain what difference between electron geometry and molecular geometry is?

aisteles1G
Posts: 117
Joined: Fri Sep 28, 2018 12:15 am

Re: H20

Postby aisteles1G » Wed Nov 14, 2018 7:49 pm

When the molecule has no lone pairs, the molecular shape and electronic geometry will be the same, but when there are lone pairs as in this example, the lone pairs will bend the molecule slightly but the electronic geometry will fit the predicted shape.


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