Polar or nonpolar?

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WYacob_2C
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Joined: Sat Jul 20, 2019 12:16 am

Polar or nonpolar?

Postby WYacob_2C » Fri Nov 29, 2019 10:24 pm

Is CH2BR2 polar or nonpolar? Do the dipole moments cancel out?

Jenna Ortiguerra 4G
Posts: 50
Joined: Sat Aug 17, 2019 12:18 am

Re: Polar or nonpolar?

Postby Jenna Ortiguerra 4G » Fri Nov 29, 2019 10:26 pm

CH2BR2 is a polar molecule because its dipole moments do not cancel out so it has a non-zero net moment.

Prasanna Padmanabham 4I
Posts: 111
Joined: Thu Jul 25, 2019 12:17 am

Re: Polar or nonpolar?

Postby Prasanna Padmanabham 4I » Fri Nov 29, 2019 10:31 pm

I know this video isn't really for the exact same molecule, but they are similar and you can use the same "technique" to analyze the polarity of CH2Br2

[youtube]https://www.youtube.com/watch?v=As-hcYY8Yaw[/youtube]

CMaduno_1L
Posts: 102
Joined: Wed Sep 18, 2019 12:18 am

Re: Polar or nonpolar?

Postby CMaduno_1L » Sat Nov 30, 2019 6:12 pm

My TA told me that generally if there is at least one atom that is not the same (amongst the outside 4 atoms of a tetrahedral) then the molecule as a whole is polar.

charleejohnson1L
Posts: 99
Joined: Fri Aug 30, 2019 12:17 am

Re: Polar or nonpolar?

Postby charleejohnson1L » Sat Nov 30, 2019 6:18 pm

CMaduno_3D wrote:My TA told me that generally if there is at least one atom that is not the same (amongst the outside 4 atoms of a tetrahedral) then the molecule as a whole is polar.


This! If the atoms on the tetrahedral aren't all the same, chances are that there will be a dipole moment that doesn't cancel out, causing the molecule to have a polar nature. :) I hope this helps.


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