14CHM11509 full - CHM 115 Dr Hilkka Kenttämaa Lecture 14 Reading was 11.1-11.4 Organic Compounds Lecture 15 same Next lab VESPR Theory Reminder 2

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Unformatted text preview: CHM 115 Dr. Hilkka Kenttämaa Lecture 14 Reading was 11.1-11.4: Organic Compounds Lecture 15: same Next lab: VESPR Theory Reminder: 2 nd Exam Next Thursday at 6:30 pm in the Hall of Music Most Important Things to Study • Energy, frequency, wavelenght of light • Line spectra of atoms • Bohr’s atomic model • Energies and shapes of orbitals • # of orbitals in each shell • # of electrons in each orbital • Electronic structures of atoms • Core and valence electrons Most Important Things to Study • Trends in atom’s sizes, ionization energies, electron affinities • Composition (formula) of ionic and covalent compounds • Lewis electron dot symbols for atoms • Lewis structures for molecules • Single, double and triple bonds • Bond order Most Important Things to Study • Formal charges • Resonance • VSEPR method • Shapes of molecules • Bond angles in molecules • Different ways of presenting organic molecules • Names of hydrocarbons • Most common functional groups Summary of Last Lecture • Be able to draw Lewis structures and identify (name) – Electron group geometry – Molecular geometry – Bond angles • Use these lecture notes in lab next week ! Molecules as Fuel: What’s in a Barrel of Oil? • Almost half of a barrel of oil is gasoline , but there are many other products that we get from oil: • The cost of a barrel of oil affects more than just the cost A Barrel of Oil: A Molecular Perspective Oil is predominantly made of “organic” (carbon containing) molecules 1 – 4 carbon atoms: some fuel, mostly feedstock for plastics and chemical products 5 – 12 carbons: fuel (gasoline), solvents 12 – 16 carbons: fuel (jet fuel) 15 – 18 carbons: diesel fuel 16 – 20 carbons: lubricants (engine oil) > 20 carbons: paraffin, waxes, asphalt What are the molecular structures of these products? Lewis Structures of Hydrocarbons...
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This note was uploaded on 02/06/2012 for the course CHM 115 taught by Professor Towns during the Spring '08 term at Purdue University-West Lafayette.

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14CHM11509 full - CHM 115 Dr Hilkka Kenttämaa Lecture 14 Reading was 11.1-11.4 Organic Compounds Lecture 15 same Next lab VESPR Theory Reminder 2

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