Problem 6.1

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Dayna Pham 1I
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Problem 6.1

Postby Dayna Pham 1I » Tue Nov 27, 2018 12:20 am

6.1 Identify the kinds of intermolecular forces that might arise between molecules of each of the following substances: (a) NH2OH; (b) CBr4; (c) H2SeO4; (d) SO2.

For SO2, why can it create dipole-dipole interactions between molecules of each? I thought it was polar. Is it because of the lone pairs?

Jerome Mercado 2J
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Joined: Tue Nov 28, 2017 3:02 am

Re: Problem 6.1

Postby Jerome Mercado 2J » Tue Nov 27, 2018 12:49 am

You are correct. SO2 is a polar molecule with two doubles bonds between the Sulfur and the two Oxygens. Thus, lone pairs contributes to the partial charges. Each oxygen has two lone pairs while the sulfur only has one. Therefore the sulfur is a delta positive while the two oxygens are the delta negatives in the molecule.

Note all these molecules are also influenced by dispersion forces.

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