Write all resonance structures for (a) nitric acid (b) nitrate ion, NO3^-

Name: Problem 49, Chapter 6: Chemistry The Molecular Science
Uploaded: 2021-05-30T09:07:29-08:00
Duration: 3 min 25 s
Channel: Lottie Adams
Description: Write all resonance structures for (a) nitric acid (b) nitrate ion, NO3^-

step 1 bonds just allows on nonmetals to obey the octet rule and become more stable as a result. Here w

Write all resonance structures for (a) nitric acid (b)...

Key Concepts

Resonance in Acids and Ions

For molecules like nitric acid and polyatomic ions like nitrate, resonance provides insight into the stability and reactivity of these species. In such cases, resonance structures reveal how the negative charge or the electron density is delocalized over multiple atoms, which is crucial for understanding properties such as acidity, bond order, and reactivity in chemical reactions.

Lewis Structures

Lewis structures are diagrams that show the bonding between atoms of a molecule and the lone pairs of electrons that may exist. They serve as the starting point for drawing resonance structures by representing all possible bonds and electron pairs, which can then be rearranged to reflect the delocalized electron scenarios seen in resonance hybrids.

Resonance Structures

Resonance structures are different valid Lewis structures that depict the possible arrangements of electrons in a molecule while maintaining the same arrangement of atoms. They are used to represent molecules where the actual electron distribution is best described as a hybrid of several forms, leading to stabilization by electron delocalization.

Formal Charge Calculation

Formal charge calculation is a method used to assign charges to atoms in a molecule based on the differences between the number of valence electrons in the isolated atom and those assigned in the Lewis structure. This calculation helps determine the most stable resonance contributors by minimizing charges and spreading out any formal charge evenly across the molecule.

Electron Delocalization

Electron delocalization refers to the dispersion of electrons over several adjacent atoms rather than being confined between two atoms in a localized bond. This concept is central to understanding resonance, as delocalization often results in increased molecular stability by allowing the electrons to lower the energy of the overall system.

Transcript

Please give Ace some feedback