43 - Last reminders: Final exam time scheduled by...

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Last reminders: Final exam time scheduled by university: CH101-003 (MWF 11:20 – 12:10) Friday, December 14, 8-11 AM DAB222 Per regulation, the only reason for an exam time change is three exams in 24 hours. CH101-004 (MWF 12:25 – 1:15) Monday, December 10, 1-4 PM DAB222 CH101-004 students who miss Monday’s final will be given a score of zero. Independently deciding to take the exam on Friday is NOT an option. Isomers Different molecules with the same molecular formula. Constitutional Different connectivities Stereoisomers Same connectivities, different spatial arrangement geometric isomers cis/trans enantiomer mirror images nonsuperimposable Section 13.3 Constitutional Isomers Condensed formulas are different CH 3 -CH=CH-CH 3 CH 3 -CH(CH 3 )-CH 3 CH 3 -CH 2 -CH 2 -CH 3 C 4 H 10 C 4 H 8 H H HH trans- cis- Geometric Condensed formulas are the same (same connectivity) but spatially different. Section 13.3 7 6 5 4 a b 3 2 1 8 a 9 10 c dec 2- ene 8-methyl-4-propyl- 7 6 5 4 a b 3 2 8 a 9 10 c 1 dec 2- ene 8-methyl-4-propyl- Section 13.3 Opposite sides of double bond H H H H Same side of Geometric Stereoisomers Name the following: hexene 2- 5-methyl- trans - heptene 3- 5-methyl- cis - Section 13.3 chiral - Greek: cheir -hand Mirror image Rotate 180 o Superimposable?
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43 - Last reminders: Final exam time scheduled by...

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