Based on Lewis structures, predict the ordering of N-O bond lengths in NO^+, NO2^-, and NO3^- .

Name: Problem 54, Chapter 8: Chemistry: The Central Science
Uploaded: 2021-06-17T13:01:29-08:00
Duration: 4 min 31 s
Channel: Susan Hallstrom
Description: Based on Lewis structures, predict the ordering of N-O bond lengths in NO^+, NO2^-, and NO3^- .

step 1 For this problem, I'm going to take a shortcut. I'm not going to calculate how many electrons we

Based on Lewis structures, predict the ordering of N-O bond...

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Key Concepts

Lewis Structures

Lewis structures are diagrams that show the bonding between atoms and the lone pairs of electrons in a molecule. They serve as the foundation for understanding molecular connectivity and electron distribution, which are essential for predicting bond properties like bond length and strength.

Resonance Structures

Resonance structures represent different possible arrangements of electrons that cannot be captured by a single Lewis structure. They are used to describe delocalized bonding situations, where multiple arrangements contribute to the actual electron distribution, affecting bond characteristics such as average bond order and length.

Bond Order

Bond order is defined as the number of chemical bonds between a pair of atoms. It is calculated from Lewis and resonance structures by averaging the number of bonds across multiple contributing structures. Higher bond orders generally correlate with shorter, stronger bonds, making it an essential concept for predicting relative bond lengths.

Formal Charge Distribution

Formal charge distribution helps in understanding how electrons are assigned in a molecule based on Lewis structures. It indicates the stability of different configurations, influences the resonance structures, and ultimately affects the bond order and bond length predictions in molecules.

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