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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Three resonance structures are possible for dinitrogen monoxide, N2O.

  1. (a) Draw the three resonance structures.
  2. (b) Calculate the formal charge on each atom in each resonance structure.
  3. (c) Based on formal charges and electronegativity, predict which resonance structure is the most reasonable.

(a)

Interpretation Introduction

Interpretation:

The three resonance structure of N2O has to be drawn.

Concept Introduction:

Resonance structures: A molecule or ion which show more than structure but none of them are accurately correct show the known property of that molecule, and can lie between the canonical structure is known as resonance or canonical or contributing structure.

Explanation

The three resonance structure is drawn

(b)

Interpretation Introduction

Interpretation:

Formal charge on each atom in each resonance structure has to be calculated.

Concept Introduction:

Formal charge: It is the electrostatic charge that would reside on an atom in a molecule or polyatomic ion if all bonding electron are shared equally between pairs of atoms.

Formal charge calculation: The formal charge for atom in a molecule or ion is calculated based on the Lewis structure of the molecule or ion by following the given equation below:

images

images- Number of valence electrons

images- Number of non-bonding electrons

images- Number of bonding electrons

(c)

Interpretation Introduction

Interpretation:

From the resonance structure drawn, the most reasonable structure has to be identified.

Concept Introduction:

Formal charge: It is the electrostatic charge that would reside on an atom in a molecule or polyatomic ion if all bonding electron are shared equally between pairs of atoms.

Formal charge calculation: The formal charge for atom in a molecule or ion is calculated based on the Lewis structure of the molecule or ion by following the given equation below:

images

images- Number of valence electrons

images- Number of non-bonding electrons

images- Number of bonding electrons

Resonance structures:

A molecule or ion which show more than structure but none of them are accurately correct show the known property of that molecule, and can lie between the canonical structure is known as resonance or canonical or contributing structure.

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