which of the following molecules would you expect to have a dipole moment of zero? a,CH2 Ch3 bH2C=0 cCH2cl dNH3

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Question

which of the following molecules would you expect to have a dipole moment of zero? a,CH2 Ch3
bH2C=0
cCH2cl
dNH3

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Chemistry Thông Đạt 3 years 2021-07-21T12:28:30+00:00 2021-07-21T12:28:30+00:00 1 Answers 26 views 0

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Captcha* Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )

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Helga · Answer 1 · 2021-07-21T12:30:17+00:00

Answer: The molecule $CH_{3}-CH_{3}$ is expected to have a dipole moment of zero.

Explanation:

The product of magnitude of the charge calculated in electrostatic units is called dipole moment.

Formula for dipole moment is as follows.

Dipole moment = Charge (in esu) $\times$ distance (in cm)

Non-polar molecules have zero dipole moment.

For example, $CH_{3}-CH_{3}$ is a non-polar molecule so its dipole moment is zero.

$H_{2}C=O$ is a polar molecule so it will have dipole moment.

$CH_{2}Cl_{2}$ is a polar molecule so it will have dipole moment.

$NH_{3}$ has nitrogen atom as more electronegative than hydrogen atom. So, net dipole moment will be in the direction of nitrogen atom.

Thus, we can conclude that the molecule $CH_{3}-CH_{3}$ is expected to have a dipole moment of zero.