Hw 4 Polarity

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Alexandra_Cooper_4H
Posts: 10
Joined: Wed Sep 21, 2016 2:56 pm

Hw 4 Polarity

Postby Alexandra_Cooper_4H » Wed Nov 02, 2016 1:40 am

I'm seriously confused with problem 4.27 part b. Myabe my Lewis structure isn't correct, but I don't see how the dipole moments cancel each other... am I supposed to look at the molecule as a whole?

Megan Yabumoto 3K
Posts: 42
Joined: Fri Jul 22, 2016 3:00 am

Re: Hw 4 Polarity

Postby Megan Yabumoto 3K » Wed Nov 02, 2016 10:17 am

Since C2H6 is symmetrical, the dipole moments that occur between C-H balance each other out because there are two carbon atoms that bond with the same number of hydrogen atoms. The symmetry and canceling out of dipoles makes C2H6 nonpolar.


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