Lewis Structures & VSEPR

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

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Fdonovan 3D
Posts: 101
Joined: Sat Aug 17, 2019 12:16 am

Lewis Structures & VSEPR

Postby Fdonovan 3D » Thu Nov 14, 2019 7:58 pm

Is it always necessary to draw the Lewis structure when using the VSEPR model? Or are there times when you don't really need it?

bellaha4F
Posts: 104
Joined: Wed Sep 18, 2019 12:20 am

Re: Lewis Structures & VSEPR

Postby bellaha4F » Thu Nov 14, 2019 8:02 pm

I think drawing the Lewis structure out first is helpful when determining the VESPR model, but I don't know if it's necessary. However, on tests, they might expect us to draw it out.

Claire Lo 3C
Posts: 55
Joined: Sat Aug 17, 2019 12:18 am

Re: Lewis Structures & VSEPR

Postby Claire Lo 3C » Thu Nov 14, 2019 8:15 pm

Drawing lewis structures help you determine whether there are lone pairs or not, which influences the VSEPR structure. Thus to be safe, always draw out the VSEPR first.

AKatukota
Posts: 100
Joined: Thu Jul 25, 2019 12:18 am

Re: Lewis Structures & VSEPR

Postby AKatukota » Thu Nov 14, 2019 10:09 pm

Drawing the lewis structure is helpful, but it is not required.

Qilan Li 4I
Posts: 54
Joined: Mon Jun 17, 2019 7:23 am

Re: Lewis Structures & VSEPR

Postby Qilan Li 4I » Thu Nov 14, 2019 11:03 pm

The Lewis Structure can help you visualize the bonded pairs and the lone pairs so I personally believe it is very helpful to draw it out while using the VSEPR model. I think once you are familiar with the shape of a molecule, you wouldn't need to draw out the Lewis Structure.

Ashley Tran 2I
Posts: 108
Joined: Thu Jul 11, 2019 12:17 am

Re: Lewis Structures & VSEPR

Postby Ashley Tran 2I » Thu Nov 14, 2019 11:26 pm

Drawing the Lewis structure can help you count up the total lone pairs and the total bonding pairs on a central atom which then correlates to the molecular shape and electron arrangement of a molecule. Remember, however, that you must be able to draw the most correct Lewis structure for this method to work.

Leyna Dang 2H
Posts: 104
Joined: Thu Jul 25, 2019 12:17 am

Re: Lewis Structures & VSEPR

Postby Leyna Dang 2H » Thu Nov 14, 2019 11:54 pm

I don't think it's necessary, but I think it can help you determine the VSEPR structure if there are lone pairs.

Daniel Martinez 1k
Posts: 50
Joined: Wed Sep 18, 2019 12:16 am

Re: Lewis Structures & VSEPR

Postby Daniel Martinez 1k » Thu Nov 14, 2019 11:56 pm

Definitely not necessary. However, it can help you know how many lone pairs and bonded pairs there are, which is essential for VSEPR.

Alexandra Bartolome 2H
Posts: 102
Joined: Sat Jul 20, 2019 12:17 am

Re: Lewis Structures & VSEPR

Postby Alexandra Bartolome 2H » Fri Nov 15, 2019 11:19 am

It's not necessary but it's always helpful so that you can see the locations of bonding electrons and lone pairs then use the VSEPR model and determine the structure.

nicole-2B
Posts: 103
Joined: Fri Aug 30, 2019 12:18 am

Re: Lewis Structures & VSEPR

Postby nicole-2B » Fri Nov 15, 2019 1:06 pm

It is not totally necessary but can be helpful to determine the shape of the molecule.


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