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Spring 2019 CH102 Discussion #1: Molecular Orbitals and Hybridization, Exercises of Chemistry

Answers to discussion #1 questions from a spring 2019 chemistry course (ch102) focusing on molecular orbitals and hybridization. Students are asked to draw correlation diagrams, sketch mo structures, and identify molecular orbital names and bond orders for various fluorine compounds.

What you will learn

  • What are the atomic orbital shapes for sp, sp3, and sp2 hybridization?
  • How do you draw correlation diagrams for NH3 using hybridized AOs?
  • How to sketch the σ-frame and π-frame for the MO structure of H2CCH2 using sp2 hybridization?
  • How to sketch the σ-frame and π-frame for the MO structure of C2H6 using sp3 hybridization?
  • How to sketch the MO structure for HCCH using sp hybridization and draw the π-energy diagram?

Typology: Exercises

2021/2022

Uploaded on 09/12/2022

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CH102 Spring 2019
Discussion #1
Answers:
1. 5
2. Atomic orbital
3.
a. sp
b. sp3, sp3
c. sp3 ; sp2; sp2
4. Draw correlation diagram for NH3 using hybridized AOs.
5.
Using hybridized atomic orbitals, sketch the σ-frame for the MO
structure for C2H6.
Hint: first draw a Lewis structure, and determine
steric number (SN) of the center atoms.
6. Using the sp2 hybrid orbitals, sketch σ-frame and π-frame structure for H2CCH2
7. Using the sp hybrid orbitals, sketch MO structure for
HCCH. (Sketch σ-frame and π-frame, draw π-energy diagram)
pf3

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CH10 2 Spring 2019 Discussion # Answers:

  1. 5
  2. Atomic orbital
  3. a. sp b. sp^3 , sp^3 c. sp^3 ; sp^2 ; sp^2
  4. Draw correlation diagram for NH 3 using hybridized AOs.

5. Using hybridized atomic orbitals, sketch the σ-frame for the MO

structure for C 2 H 6. Hint: first draw a Lewis structure, and determine

steric number (SN) of the center atoms.

  1. Using the sp^2 hybrid orbitals, sketch σ-frame and π-frame structure for H 2 CCH 2
  2. Using the sp hybrid orbitals, sketch MO structure for HCCH. (Sketch σ-frame and π-frame, draw π-energy diagram)