QUIZ KEYS (Click here)
problems for Quizzes, recitations, and to practice for exams.
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Quiz Practice Problems for CEM351 |
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Chapter 1
End of Chapter Problems: 25, 27, 28, 29a, 31, 34, 35, 36, 43 (this is how we will draw molecules in CEM351), 46, 47, 50, 55, 56, 57 |
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CHAPTER 2 End of Chapter Problems: 26, 27,
28 (part iii*), 29, 30, 32, 33, 34,
35, 36, 37, 38, 40, 41, 42, 47, 48, 55, 57, 58 Functional Group Table (memorize!) *part iii, only determine from direction of the reaction arrow if Keq < > or = 1. No calculator. |
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CHAPTER 3 End of Chapter Problems: 15, 16 (name each radical; identify as 1°, 2° or 3°; and rank stability), 19 (look at BDE* Table 3-2), 21a,b, 22, 23, 27b-e, (draw line bond structures for d and e, read '27a' for curiosity), 28, 29, 30, 32, 34b,c (use Figure 3-13, pg 124 as example), 35, 37 (thought question), 38 (calculate relative reactivities toward Br atom only), 39, 44 (determine which bonds are broken in reactants and which are made then use BDE given in text of prob 44), 47, 49
*BDE
(bond dissociation energy) values will be given on tests (Table 3-2, pg 100) Intro to Newman Projections (click
here) pertinent material starts at 1:50 min Ethane Newman Projection Rotational Energy (click here) Butane Newman Projection Rotational Energy
(click here) pertinent material starts at 2:15 min |
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CHAPTER 4 End of Chapter Problems: 23ace, 24ace, 25ace, 27, 29, 30acegi (use chair flip templates here and for 32), 32ace, 36 (use boat templates here), 37 (use chair template above, and twisted boat template here), 43, Some(!) Independent Honors Option
Practice: 38, 39, 40, 41a, 42, 44, 45 first sentence (use molecules here),
49a, 51ab (remember PhICl2 is excess for 2nd
propagation step and the radical product of this step must recycle) YouTube Cyclohexane Conformations (1) YouTube Cyclohexane Conformations (2) Quick Time movie video Potential Energy Diagram of Cyclohexane Conformations (here)
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CHAPTER 10 How
they may look on a Quiz: Practice
Problems (here)(Key
here – the numbering between "Quiz Practice Problems" and Key
are different, but the problems are in the same sequence, so it should be
simple to find the answers) End of Chapter Problems: 29, 32c,
33, 34, 35, 36 (only the first question), 37ab, 38, 39, 40, 42, 43, 47...to
be continued.
For problems 32c, 37ab, 39, 40, 42, 47 (click here)
to see how it will be formatted for
Quiz scenario.
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CHAPTER 5
End of Chapter Problems: 32-39 (for
problems 32 and 33, I STRONGLY advised to draw these out in skeletal, ie line bond, structures as in prob
34), 41-45, 49a, 50abc, 51abcd, 53, 54, 55ac, 56 (name IUPAC)abc, 57, 61, 69 Honors
Options Example Problems 47, 48, 63, 67 |
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CHAPTER 6
End of Chapter Problems: 31, 32, 36 (Table 6-3 here), 38, 39, 41-46, 47abcf, 48, 54, 55, 56, 57, 59 Honors
Options Example Problems 50, 51, 52, 53
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(Chapters 6 and 7) |
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CHAPTER 7
End of Chapter Problems: 25-38,
39ace, 40, 42abefi, 43abefi, 46, 47, 48 (rows 2 and 4), 49, 55ab Honors
Options Example Problems 56, 57, 58, 60a |
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CHAPTER 11
End of Chapter Problems: 29-35,
37-42 (see page 472 for prob 42), 43, 46, 48, 49,
50, 61, 62 |
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CHAPTER 12
End of Chapter Problems: 33adeh*,
34, 35, 36 (thought question), 37, 38, 39, 40, 41**, 42-49, 51, 54. 55, 57,
65acg (for 65c see Table 12.2 pg 500), 66abcdef Honors
type Problems 56 *DH° Cl-Cl: 58 kcal mol-1 DH° C-Cl: 136 kcal mol-1 DH° H-F: 136 kcal mol-1 DH° Csp3-F: 110
kcal mol-1 DH° Csp3-SCH3:
60 kcal mol-1 DH° Csp3-H: 101
kcal mol-1 DH°
H-I: 71 kcal mol-1 DH° Csp3-I: 56
kcal mol-1 DH° CH3S-H: 88
kcal mol-1 DH° Csp3-SCH3:
60 kcal mol-1 **
4-methyl-2-pentenoic acid methyl ester |
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(IR/MS/NMR) Practice Problems NMR, IR, MS coverage: IR/MS (Practice
Problems) IR/MS/NMR (Practice
Problems) Chapter 11: 51, 52, 55-61, 63 |
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CHAPTER 13 READ 13.4
to 13.9, 13.26 (page 568–571) End of Chapter Problems: 27,
28a-e, 31, 33, 34a (click
here), 34b (click
here), 36, 37, 38abe (Note: b is hindered), 40abcde (Hint: which gives
desired product nearly EXCLUSIVELY, without competition products?), 43,
44abcdehi, 45abcdehi, 46i, 47 Thought
problems: 29, 30,
32 (draw out each structure as line bond) |
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CHAPTER 8 Reading: Sections 8.1, 8.6 (pg 292 +
mechanism, pg 293, 295, 296 + mechanism) Sections 8.7, 8.8 WITHIN CHAPTER 8 Exercise 8.8, 8.11, 8.16, 8.17, 8.18 End of Chapter Problems: 24, 36bcde(for e think sterics), 38abc(c is SN2 practice), 40, 43, 46 (pay attention to a and c), 48abc (Note: b starts with SN2 reaction)
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Dear KOOFERS: I try to never write
a Quiz/Exam that is an exact replica from a previous semester, where students
merely have to memorize answers! Final Exam (No Keys, View Exam by Appt)
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