Molecular Modeling Computational Chemistry Molecular Shapes Polarity Dr

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Molecular Modeling Computational Chemistry Molecular Shapes, Polarity Dr. Ron Rusay

Molecular Modeling Computational Chemistry Molecular Shapes, Polarity Dr. Ron Rusay

Shapes of Molecules View: What is the shape of a molecule? George Zaidan and

Shapes of Molecules View: What is the shape of a molecule? George Zaidan and Charles Morton https: //www. youtube. com/watch? v=Jq_Ca-HKh 1 g

Shapes of Molecules View: What is the shape of a molecule? George Zaidan and

Shapes of Molecules View: What is the shape of a molecule? George Zaidan and Charles Morton https: //www. youtube. com/watch? v=Jq_Ca. HKh 1 g http: //chemconnections. org/general/chem 1 08/Molecular%252520 Shapes-Guide. html

Molecular Shapes Molecular Models for C, H, N, O ¥ Fundamental repeating shapes found

Molecular Shapes Molecular Models for C, H, N, O ¥ Fundamental repeating shapes found in every biological molecule C =black H = gray N = blue O = red pink = generic atom

http: //molview. org Molecular Shapes → Lewis Structures Ammonia Molecular Modeling: Bonding & Lewis

http: //molview. org Molecular Shapes → Lewis Structures Ammonia Molecular Modeling: Bonding & Lewis Structures Computational Chemistry: Molecular Modeling Report Form Replaces Lab Manual pp. 53 -58

http: //molview. org Molecular Shapes → Lewis Structures Mol. View: Visual On-line Molecular Modeling

http: //molview. org Molecular Shapes → Lewis Structures Mol. View: Visual On-line Molecular Modeling Ammonia Molecular Modeling: Bonding & Lewis Structures Computational Chemistry: Molecular Modeling Report Form Replaces Lab Manual pp. 53 -58

Lewis Structures → Molecular Shapes ¥ For simple Lewis structures: 1. Draw the individual

Lewis Structures → Molecular Shapes ¥ For simple Lewis structures: 1. Draw the individual atoms using dots to represent the valence electrons. 2. Put the atoms together so they share PAIRS of electrons to make complete octets. ¥ NH 3 Ammonia:

http: //molview. org Molecular Shapes → Lewis Structures Ammonium Molecular Modeling: Bonding & Lewis

http: //molview. org Molecular Shapes → Lewis Structures Ammonium Molecular Modeling: Bonding & Lewis Structures Computational Chemistry: Molecular Modeling Report Form Replaces Lab Manual pp. 53 -58

http: //molview. org Molecular Shapes → Lewis Structures Mol. View: Visual On-line Molecular Modeling

http: //molview. org Molecular Shapes → Lewis Structures Mol. View: Visual On-line Molecular Modeling Ammonium Molecular Modeling: Bonding & Lewis Structures Computational Chemistry: Molecular Modeling Report Form Replaces Lab Manual pp. 53 -58

Lewis Structures → Molecular Shapes ¥ For simple Lewis structures: 1. Draw the individual

Lewis Structures → Molecular Shapes ¥ For simple Lewis structures: 1. Draw the individual atoms using dots to represent the valence electrons. 2. Put the atoms together so they share PAIRS of electrons to make complete octets. ¥ NH 4+ + H + + Ammonium

Molecular Geometry – Overview Numbers of atoms or (“lone” / “free”) pairs of electrons

Molecular Geometry – Overview Numbers of atoms or (“lone” / “free”) pairs of electrons about the central atom from Lewis Structure Four Three Two Molecular Geometry Assignment

Molecular Polarity Trigonal Pyramid Tetrahedral Trigonal Planar http: //chemconnections. org/COT/VSEPR 1/ DVC Student Project

Molecular Polarity Trigonal Pyramid Tetrahedral Trigonal Planar http: //chemconnections. org/COT/VSEPR 1/ DVC Student Project Group Tetrahedral

Molecular Polarity The vector sum of the magnitude and the direction of the individual

Molecular Polarity The vector sum of the magnitude and the direction of the individual bond dipoles determine the overall polarity (dipole moment) of a molecule