vsepr shape

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

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katietietsworth_3c
Posts: 31
Joined: Fri Sep 28, 2018 12:24 am

vsepr shape

Postby katietietsworth_3c » Sat Nov 24, 2018 9:47 am

Does anyone have a trick to figuring out the vsepr shape from the lewis structure?

sallina_yehdego 2E
Posts: 75
Joined: Sun Apr 29, 2018 3:00 am

Re: vsepr shape

Postby sallina_yehdego 2E » Sat Nov 24, 2018 10:12 am

The two models are pretty similar, but I first start by drawing out the lewis structure in the most linear shape as possible. Then I add the dotted and darkened lines as much needed. I also circle in the lone pairs. From there, I find it easier to the the VSEPR shape. Hope this helps.

sallina_yehdego 2E
Posts: 75
Joined: Sun Apr 29, 2018 3:00 am

Re: vsepr shape

Postby sallina_yehdego 2E » Sat Nov 24, 2018 10:13 am

Here's a website that can also help.

http://chemed.chem.purdue.edu/genchem/t ... vsepr.html

Maria Nabagala 3E
Posts: 30
Joined: Fri Sep 28, 2018 12:24 am
Been upvoted: 2 times

Re: vsepr shape

Postby Maria Nabagala 3E » Sat Nov 24, 2018 11:42 am

sallina_yehdego 1B wrote:Here's a website that can also help.

http://chemed.chem.purdue.edu/genchem/t ... vsepr.html


This is very helpful

Rylee Nelsen 3A
Posts: 37
Joined: Fri Sep 28, 2018 12:22 am

Re: vsepr shape

Postby Rylee Nelsen 3A » Sat Nov 24, 2018 11:44 am

I made a chart for the VSEPR model that shows each lewis structure and the particular shape, angle and # of lone pairs that it corresponds to. I would just memorize some of them, it makes it easier to identify atoms.

705152867
Posts: 28
Joined: Fri Sep 28, 2018 12:18 am

Re: vsepr shape

Postby 705152867 » Sat Nov 24, 2018 1:22 pm

Taking into account formal charge and drawing out the correct Lewis structure will help you find the VSEPR model that corresponds to it. Finding a chart online or even making one on your own can help you memorize the bond angles, # lone pairs, etc. that are needed in each model.

Madeline Motamedi 4I
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

Re: vsepr shape

Postby Madeline Motamedi 4I » Sat Nov 24, 2018 5:20 pm

An additional way to go about this is by first drawing the lewis structure, then actually going to classify which VSEPR formula it falls under for example, AX2. From there you can memorize or start to familiarize yourself with which structures and shapes correspond to which formulas and determine the shapes.


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