2E: Question 29

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

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John Liang 2I
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2E: Question 29

Postby John Liang 2I » Tue Nov 19, 2019 7:56 pm

How does one determine which dichlorobenzene isomer has the largest dipole moment between 1 and 2? Is it 1 because the angles of the dipoles are more "skewed" in one direction than 2?

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Re: 2E: Question 29

Postby SarahSteffen_LEC4 » Tue Nov 19, 2019 8:00 pm

Yes, that is exactly why 1 has a larger dipole moment than 2 in this problem.

Doreen Liu 4D
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Re: 2E: Question 29

Postby Doreen Liu 4D » Tue Nov 19, 2019 8:43 pm

The dipole moment for 1 would be the largest because the C-Cl bond vectors are pointing most nearly in the same direction in 1 whereas in 2 the C-Cl vectors point more away from each other, giving a larger cancellation of dipole.

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Re: 2E: Question 29

Postby anjali41 » Tue Nov 19, 2019 8:44 pm

Yes, option 1 has the largest dipole moment because the two dipoles are closer together and are separated by a smaller angle. An easy way to think about this is to think to imagine that if the dipoles were on opposite sides, they would be more likely to cancel out and would not be as strong of a dipole moment.

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