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Chemistry & Chemical Reactivity

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

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Chapter
Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

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

Should the energy required to break one of the H—F bonds in HF2 (HF2→ HF + F) be greater than, less than, or the same as the energy required to break the bond in HF (HF→ H + F F). Explain your answer, considering the 3-center-4-electron bond model for HF2 described in A Closer Look: Three-Center Bonds in HF2, B2H6, and SF6.

Interpretation Introduction

Interpretation:

The energy required to break one of the HF bonds in HF2 be greater than, less than, or the same as the energy required breaking the bond in HF; the reason behind this should be explained.

Concept Introduction

Valance bond (VBT) theory: This theory explain a chemical bonding theory that explains the bonding between two atoms is caused by the overlap of half-filled atomic orbitals. The two atoms share each other's unpaired electron to form a filled orbital to form a hybrid orbital and bond together.

Bond energy: It is defined bond energy as the average value of the gas-phase bond dissociation energies for all bonds of the same type within the same chemical species.

Explanation

The both HF and HF2 molecule bond order is one, the bond order calculation methods are derived in different problems in this chapter.

We consider the three center bonded electron structure of (HF2, B2H6and SF6molecules)

 

Above the three molecules three center four electron bonded and corresponding molecules bond order a 0

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