HW 3.59 PART C

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Hannah Guo 3D
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Joined: Fri Sep 29, 2017 7:06 am

HW 3.59 PART C

Postby Hannah Guo 3D » Sun Nov 05, 2017 7:31 pm

3.59 Write the Lewis structure of each of the following reactive species, all of which are found to contribute to the destruction of the ozone layer, and indicate which are radicals:(c) chlorine nitrate, ClONO2 (the central O atom is attached to the Cl atom and to the N atom of the NO2 group).

I drew the Lewis structure as Cl-O-NOO (N atom forms double bonds with two oxygen atom), which obeys the octet rule and has the lowest formal charges. However, the correct answer is Cl-O-NOO (N atom forms a single bond with one oxygen atom and a double bond with another), in which the oxygen atom that forms a single bond with N atom has a formal charge of -1. Please explain why my answer is wrong.

Thank you!

Julian Krzysiak 2K
Posts: 49
Joined: Fri Sep 29, 2017 7:07 am

Re: HW 3.59 PART C

Postby Julian Krzysiak 2K » Sun Nov 05, 2017 7:57 pm

If you drew N with double bonds to both O, then you would have 10 electrons for N, since you also have to draw a single bond from N to the other O that has Cl attached. You can only have one double bond with 1 O, because then you would be able to have 4 bonds connecting to N, fulfilling the octet rule, instead of 5, which goes against the octet rule.


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