CHEM 226 Elementary Organic Chemistry
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Transcript of CHEM 226 Elementary Organic Chemistry
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CHEM 226Elementary Organic Chemistry
• Text Book
• Course Website: http://employees.oneonta.edu/odagomo/
• OWL Homework Access and Registration
• Lab Materials
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Chapter 1: Bonding and Isomerism
Methyl butyrate and propyl acetate are both organic flavors that are found in apples and pears respectively and are structural isomers.
Structural Isomers are compounds that have the molecular formula (C5H10O2), but have different connectivity hence different structural formulas.
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Bonding and Isomerism
Questions ?
Why does sucrose melt at 1850C while table salt melts at 801o C?
Why do both substances dissolve in water and olive oil does not?
Why does methyl butyrate smell like pears while propyl acetate smell like apple yet they have the same number and kind of atoms?
Bonding is the key to the structure, physical properties and chemical behavior of different kinds of matter.
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Ionic Compounds
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The Covalent Bond
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Carbon and the Covalent Bond
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Draw the structures of dichloromethane and trichloromethane (chloroform)
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Carbon-Carbon Single Bonds
C-C 1.54 Å
H-H 0.74 Å
C-H 1.09 Å
Cl-Cl 1.98 Å
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p. 8b
A radical is a molecular fragment with an odd number of electrons
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Polar Covalent Bonds
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p. 10, Table 1-4
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p. 10
Bond polarization in tetrachloromethane
Draw the structure of the refrigerant dichlorodifluoromethane CCl2F2 and indicate the polarity of the bonds. (Prob. 1.11)
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p. 11a
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p. 11c
Determine What, if anything is wrong with the following electron arrangement for carbon dioxide
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p. 12a
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p. 12b
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p. 12, Table 1-5
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p. 13
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p. 14
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p. 15a
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p. 15b
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p. 15d
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p. 16b
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p. 16c
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p. 16d
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p. 17a
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p. 17b
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p. 17c
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p. 17d
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p. 18a
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p. 18b
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p. 18c
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p. 18d
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p. 18f
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p. 19a
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p. 20c
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p. 21b
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p. 22b
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p. 23, Fig. 1-2
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p. 23
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p. 24, Fig. 1-5
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p. 24, Fig. 1-6
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p. 25, Fig. 1-7
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p. 25, Fig. 1-8
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p. 25, Fig. 1-9
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p. 26, Fig. 1-10
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p. 26, Fig. 1-11
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p. 27a
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p. 27, Fig. 1-12
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p. 27b
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p. 28, Fig. 1-13a
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p. 28, Fig. 1-13b
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p. 28a
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p. 29, Fig. 1-14
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p. 29, Fig. 1-14a
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p. 29, Fig. 1-14b
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p. 29
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p. 30, Table 1-6a
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p. 31, Table 1-6b
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p. 33a
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p. 33i
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p. 34c
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p. 35a
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p. 35d