Determining the Pairing for Lewis Structures

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ALegala_2I
Posts: 102
Joined: Thu Jul 11, 2019 12:17 am

Determining the Pairing for Lewis Structures

Postby ALegala_2I » Wed Oct 30, 2019 7:39 pm

How do we know when the hydrogen will be attached to the central atom vs other atoms? Like in the case of HClO2, why is the hydrogen attached to the oxygen and not the chlorine?

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Suraj Doshi 2G
Posts: 100
Joined: Fri Aug 02, 2019 12:15 am

Re: Determining the Pairing for Lewis Structures

Postby Suraj Doshi 2G » Wed Oct 30, 2019 8:14 pm

I believe that specifically for this case, the hydrogen bonds to oxygen due to the strong covalent bond attraction. Since Cl is larger than O, the dipole-dipole attraction is weaker and thus hydrogen does not like to bond with chlorine.

Mashkinadze_1D
Posts: 87
Joined: Sat Aug 24, 2019 12:15 am

Re: Determining the Pairing for Lewis Structures

Postby Mashkinadze_1D » Wed Oct 30, 2019 9:38 pm

If I am correct, hydrogen generally tries to bond to N, O, or F as this allows it to take place in hydrogen bonding. Therefore, it did not bond to Cl because then the overall strength of the molecule would be decreased significantly.


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