Announcements – Lecture XIV – Tuesday, June 9th

1. Fourth Lab: Today, 1:30-4:30, ISB 155B

2. Exam II: Friday, June 13th, In Class

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1 Draw the Lewis structure for the following molecules:

Quiz 11 Class #: ____ Last Name: _____________

1. Draw the Lewis structure for the following molecules:a) NO+ b) NO2

+ c) NO2-

2. Which of the above moleculeswould have a bond length> 115 pm _____

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8.4 Electron Distribution in MoleculesC: Resonance Structures, Formal Charge – Refining Structures

PO 3 (O t t R l ) PO 3 (Mi i l F l Ch )PO43- (Octet Rule) PO4

3- (Minimal Formal Charge)

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8.4 Electron Distribution in MoleculesC: Resonance Structures, Formal Charge – Refining Structures

SO 2 (O t t R l ) SO 2 (Mi i l F l Ch )SO42- (Octet Rule) SO4

2- (Minimal Formal Charge)

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8.5 Valence-Shell Electron-Pair Repulsion and Molecular ShapeA: VSEPR and Electron-Pair Geometry

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8.5 Valence-Shell Electron-Pair Repulsion and Molecular Shape B: Electron Pair Geometries – Molecular Geometries Tetrahedron

CH4

Lewis Structure Class Electron Pair Geometry Molecular Geometry Bond Angles

NH3

H OH2O

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8.5 Valence-Shell Electron-Pair Repulsion and Molecular Shape B: Electron Pair Geometries – Molecular Geometries Tetrahedron

ClO4–

Lewis Structure Class Electron Pair Geometry Molecular Geometry Bond Angles

ClO3–

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8.5 Valence-Shell Electron-Pair Repulsion and Molecular Shape B: Electron Pair Geometries – Molecular Geometries Trigonal Planar

H2COLewis Structure Class Electron Pair Geometry Molecular Geometry Bond Angles

NO2–

NONO3–

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8.5 Valence-Shell Electron-Pair Repulsion and Molecular Shape B: Electron Pair Geometries – Molecular Geometries Linear

HCNLewis Structure Class Electron Pair Geometry Molecular Geometry Bond Angles

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