How to study for VSEPR?

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

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Angeline 3E
Posts: 50
Joined: Wed Sep 18, 2019 12:20 am

How to study for VSEPR?

Postby Angeline 3E » Fri Nov 15, 2019 7:41 pm

How are you guys studying for VSEPR for Test 2? Just doing practice problems? Are there any good practice problems anybody can suggest :D Thanks

Aayush Patel 3B
Posts: 51
Joined: Thu Jul 25, 2019 12:17 am

Re: How to study for VSEPR?

Postby Aayush Patel 3B » Fri Nov 15, 2019 7:43 pm

2.E has a lot of great practice VSEPR problems. Also, if you look up a chart with all of the shapes and bond angles listed, then you can test yourself on all the different molecular shapes and the corresponding bond angles.

Blanca Cervantes
Posts: 17
Joined: Wed Nov 21, 2018 12:18 am

Re: How to study for VSEPR?

Postby Blanca Cervantes » Fri Nov 15, 2019 9:40 pm

https://www.google.com/imgres?imgurl=ht ... mrc&uact=8

I agree with Aayush. I am using the diagram in the link above to study for it!

Osvaldo SanchezF -1H
Posts: 122
Joined: Wed Sep 18, 2019 12:21 am

Re: How to study for VSEPR?

Postby Osvaldo SanchezF -1H » Fri Nov 15, 2019 9:47 pm

For this the best approach is just study for it and memorize what bond angles goes with which shape. Personally if you know how to write the VSEPER formula of AXE for the molecules you can just remember that every molecule with the same formula will have the same shape and similiar bond angles.

Melvin Reputana 1L
Posts: 55
Joined: Sat Aug 17, 2019 12:16 am

Re: How to study for VSEPR?

Postby Melvin Reputana 1L » Sat Nov 16, 2019 12:08 am

Here is a website that helps you experiment with the VSEPR models:

https://phet.colorado.edu/en/simulation/molecule-shapes

It can help you visualize how the shapes are formed and how the presence of lone pairs can alter the geometry.

Sarah Zhari 1D
Posts: 103
Joined: Sat Sep 14, 2019 12:16 am

Re: How to study for VSEPR?

Postby Sarah Zhari 1D » Sat Nov 16, 2019 10:40 am

I think that visualizing the molecules in 3-D really helps, especially when you can't remember the names of the shapes.

Jessica Li 4F
Posts: 115
Joined: Fri Aug 09, 2019 12:16 am

Re: How to study for VSEPR?

Postby Jessica Li 4F » Sat Nov 16, 2019 12:54 pm

I agree with all of the comments above. 2E has a lot of great practice, but if you want to do more, there should be a lot of other worksheets on Google. I think a good method to memorize the shapes and angles is to start with the VSEPR formula and overall shapes without taking into account lone pairs. All molecules with lone pairs will have angles slightly less than what their shape would be without lone pairs, and the VSEPR formula indicates the more accurate shape for all molecules.

Aadil Rehan 1D
Posts: 52
Joined: Thu Jul 11, 2019 12:16 am
Been upvoted: 1 time

Re: How to study for VSEPR?

Postby Aadil Rehan 1D » Sat Nov 16, 2019 3:18 pm

I, personally, am making a chart with the format that Prof. Lavelle discussed in class (i.e. AXnEn), as well as the shape and the bond angles.

305416361
Posts: 50
Joined: Fri Aug 09, 2019 12:17 am

Re: How to study for VSEPR?

Postby 305416361 » Sat Nov 16, 2019 3:21 pm

I agree that 2.E has a lot of great practice problems, but I am also checking out some worksheets on google and making notecards for each specific molecular geometry that includes:
- shape/name
- number of electron regions
- number of bonded & lone electron pairs
- bond angles
- VSEPR notation (AXnEn)

^ quizlet may also have study sets with this info!

PGao_1B
Posts: 50
Joined: Sat Jul 20, 2019 12:15 am

Re: How to study for VSEPR?

Postby PGao_1B » Sat Nov 16, 2019 4:25 pm

In terms of studying for VSEPR for Test 2, just do as much practice problems as you can - the more the better. In terms of "good" practice problem suggestions, start by completing all the practice problems in the Molecular Shape and Structure unit outline (although only 5 are required for homework), then move on to more complex practice problems by either creating your own or finding practice problems online or through your TA. Try memorizing all of the VSEPR bond angles and shapes as well, just for good measure.


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