1. Chapter 9 Orbitals and Covalent Bonds pp

4. Figure 9.3 p. 417

5. Fig. 9.3 p. 417 - Tetrahedral

6. Figure 9.3 p. 417 The Formation of sp 3 Hybrid Orbitals

7. In terms of energy (LD 2:6.65) Energy 2p 2s Hybridization sp 3

12. Figure 9.8, p. 419

13. Fig. 9.8 p. 419

14. Figure 9.8 The Hybridization of the s , p x , and p y Atomic Orbitals

15. In terms of energy (fig. 9.9 p. 419) Energy 2p 2s sp 2 Hybridization 2p

18. Fig. 9.13, p. 420 C C H H H H

22. In terms of energy Energy 2p 2s Hybridization sp 2p

24. N 2

25. N 2

28. PCl 5 Can’t tell the hybridization of Cl Assume it’s sp 3 to minimize repulsion of electron pairs .

31. p. 426 Figure 9.24 The Relationship of the Number of Effective Pairs, Their Spatial Arrangement, and the Hybrid Orbital Set Required (end 9.1) Effective pairs are also known as RHED (Regions of High Electron Density) - use for online HW

37. The H 2 Molecular Orbital Model Energy MO 2 MO 1  s  s

40. H 2 1- ion Energy  1s  1s *  s  s

46. Molecular Orbitals Part 2

49. B 2

50. B 2  2p *  2p  2p *  2p

51. Expected Energy Diagram Energy 2s 2s 2p 2p  2s  2p *  2p  2s *  2p *  2p *  2p  2p

52. B 2 Energy 2s 2s 2p 2p

56. Correct energy diagram 2s 2s 2p 2p  2s  2p *  2p  2s *  2p *  2p *  2p  2p

57. B 2 2s 2s 2p 2p

60. Finishing Chapter 9 Details, details, details

62. NO 2s 2s 2p 2p

64. 1s 2p  

68. C 2 H 6

69. NO 3 -