Which has greater bond lengths? (please help!!!!)?

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Which has greater bond lengths? (please help!!!!)?

Which has greater bond lengths: NO2- or NO3-? Explain.

2007-10-26 06:50:51 · 1 answers · asked by tay 3 in Science & Mathematics ➔ Chemistry

1 answers

You need to draw out the resonance structures for both ions. NO2- has two resonance structures, with one double-bond N=O and one single bond N-O. NO3- has three resonance structures, with one double-bond N=O and two single bonds N-O. Hence the NO3- ion has greater bond lengths.

2007-10-27 19:23:57 · answer #1 · answered by Hahaha 7 · 0⤊ 0⤋