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SuggestedSuggested questions from the end of chapter...
1. 3, 7, 9, 13, 15, 19, 23, 25, 33, 35, 37, (41, 45 - you may also use other methods to solve these problems)
2. 1, 13, 15, 19, 25, 29, 33, 35, 37, 39, 41, 45, 47, 49, 61, 64, 67
3. 5, 7, 17, 19, 21, 33, 37, 39, 45, 51, 59, 61, 73, 75, 79, 91, 100
4. 5, 9, 11, 13, 25, 27, 35, 37, 39, 43, 51, 53, 59, 61, 67, 69, 85
6. 1, 7, 9, 11, 13, 15, 19, 25, 27, 31, 35, 43, 45, 47, (48), 51, 53, 59, 61, 65, 67, 69, 85
7. 11, 13, 15, 19, 23, 25, 27, 31, 33, 35, 37, 39, 45
8. 1, 9, 23, 25, 27, 35, 37, 39, 47, 49, 51, 53, 59
9. 1,7, 11, 13, 19, 21, 23, 29, 33, 35, 39, 62
10. 7, 9, 17, 23, 29, 37, 43, 49, 51, 61
11. 1, 7, 9, 11, 13, 15, 17, 19, 21, 41, 69, 77, 85, 94
13. 1, 3, 13, 15, 21, 23, 25, 27, 45, 49, 51
Homework #1 - answers:
Q2: 6.941 amu;
Q3: 1x10 13 pm;
Q4: CH 2 O;
Q5: a) 4.0 mol HF, b) 42 g NaF;
Q6: a) O 2 , b) 2.14 g NO, c) 0.076 mol NH 3 ;
Q7: 2.98 g CO 2
Homework #2 - answers:
Q1: c Q2: c Q3: c Q4: b Q5: e Q6: b and e
Q7: 0.752M Na + , and 0.376M SO 4 2-
Q8: 0.423M CH 3 COOH (Note, this was NOT a dilution problem but a siple 1:1 stoichiometry of neutralization reaction. Full solution should have included a neutralization reaction equation between acetic acid and sodium hydroxide)
Q9: 472 nm
Q10: a) see figure 6.21 in BLB; b) see figure 6.22 in BLB; c) see figure 6.23 in BLB (Marks were taken off for not showing the axes)
Homework #3 (Lecture Section 3 ONLY!)
Q1: a Q2: d Q3: b Q4: b Q5: b Q6: b (or e)
Q7: nonmetal, acidic, acid, H 2 SO 3 (or H 2 SO 4 ); sulfurous (or sulfuric)
Q8: a) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d10 5p 6 6s 2 4f 14 5d 4; b) 6s 2 5d 4
Q9: b) 4s 2 3d 8 ; c) +2
Q10: a) ns 2 np 4 , b) -2 (need to accept two electrons to satisfy the octet rule)
Homework #3 (Lecture Section 2 ONLY!)
Q1: b Q2: d Q3: c Q4: b Q5: d Q6: a
Q7: metal, basic, base, Mg(OH) 2 , magnesium hydroxide
Q8: a) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d10 5p 6 6s 2 4f 14 5d 10 6p 3 ; b) 6s 2 6p 3
Q9: b) 4s 2 3d 7 ; c) +2
Q10: a) ns 2 np 5 , b) -1 (need to accept one electron to satisfy the octet rule)
Homework #4
Q1: (i) and (v)
Q2: (i)
Q3: (iii) and (iv)
Q4: (iv) and (v)
Q5: NO
Q6: (i), (ii) and (iii)
Q7: (ii)
Q8: (iv) and (v)
Q9: NO
Q10: one structure with all single bonds, lone pair on S (-1 f.charges on all oxygens and +1 f. charge on sulfur); three equivalent resonance structures with 1 double bond and two sigle bonds and a lone par of electrons on sulfur (0 f.charge on sulfur and the double bonded oxygen, -1 f.charges on the remaining oxygen atoms)
Q11: -6550 kJ! Sorry - the reaction did not balance. I have accepted most calculatios as long as the correct method was in place.
Q12: ammonium dichromate; calcium hydrogen carbonate, Mg(MnO4)2, K3PO4, iron(III) chloride, CuSO4.
Homework #5
1B 2D(C also accepted though wrong) 3C 4B 5A 6C 7A 8D 9D 10A 11A 12C 13E 14C 15C 16C 17A 18D 19D 20C
Exam 3 Lecture section 2 Version A
1d 2e 3b 4c 5a 6e 7c 8a 9d 10b 11e 12d 13e 14c 15c 16d 17c
Exam 3 Lecture section 2 Version B
1c 2a 3a 4b 5e 6d 7a 8d 9b 10c 11b 12b 13c 14e 15c 16d 17 d
Exam 3 Lecture section 3 Version A
1d 2e (d also accepted) 3d 4b 5a 6c 7a 8c 9e 10d 11b 12a 13d (or e) 14e
15d 16 (.336 L - sorry - question eliminated) 17d
Exam 3 Lecture section 3 Version B
1a 2d 3b 4e (b also accepted) 5c 6b 7d 8e 9b 10a 11b 12d 13d (or e) 14d
15 (.336 L - sorry - question eliminated) 16b 17d
Exam 2 Lecture section 2 Version A
1c 2e 3e 4a 5a 6b 7e 8c 9d 10a 11e 12e 13d 14a 15b 16c 17c
Exam 2 Lecture section 2 Version B
1a 2c 3c 4b 5a 6e 7b 8a 9e 10c 11d 12d 13b 14a 15e 16d 17e
Exam 2 Lecture section 3 Version A
1b 2d 3d 4a 5c 6e 7d 8b 9a 10e 11d 12c 13c 14d 15d 16e 17c
Exam 2 Lecture section 3 Version B
1b 2a 3e 4c 5e 6d 7b 8d 9e 10a 11b 12c 13a 14b 15c 16b 17d