//www.walnuths.net/apps/classes/424500/assignments/ Class Name: Honors Chemistry Per. 5 Instructor(s): Garrett Lim Location: C-8 en-us SchoolSitePro //www.walnuths.net/homeworkItem2719824 //www.walnuths.net/apps/classes/424500/assignments/ ]]> Sun, 27 May 2012 22:42:54 PDT //www.walnuths.net/homeworkItem2719825 //www.walnuths.net/apps/classes/424500/assignments/ ]]> Sun, 27 May 2012 22:45:09 PDT //www.walnuths.net/homeworkItem2719952 //www.walnuths.net/apps/classes/424500/assignments/ ]]> Mon, 28 May 2012 22:06:36 PDT //www.walnuths.net/homeworkItem2716570 //www.walnuths.net/apps/classes/424500/assignments/
Answers (Coefficients of the original equation listed. If not in the original equation, like H2O or H+ or OH-, it will be written out):

#2: 2H+, 1, 2 --> 2, 1 (no additional H2O needed since it's already in the equation!!!)
#4: 2OH-, 2, 3 --> 2, 3, 1H2O

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Answers (Coefficients of the original equation listed. If not in the original equation, like H2O or H+ or OH-, it will be written out):

6: 4H+, 1, 2 --> 1, 2, 2H2O
8: 16H+, 2, 10 --> 2, 5, 8H2O (watch out for doubling of chlorine/chloride!)
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Optional practice problems:

Keq expression practice: p. 883 Ch. 18 #1-6
Keq calculation practice: p. 883 #7-9
Ka expression practice: p. 884 #7-10 (for #8, there is a typo. It is supposed to be a subscript 3, not superscript)
pH practice: p. 884 #11-19
Ka practice: p. 616 #23ab, p. 632 #91, 92, p. 884 #21

Optional practice problems selected answers:

p. 883
7: 66.9
8: 0.0665
9a: 0.135M
9b: 0.948M

p. 884
11: acidic
12: acidic
13: 3.35
14: pH=11.94, pOH=2.06
15: pH=5.57, pOH=8.43
16: 0.0012M
17: 0.36M
18: 3.17
19: 9.53

Ka stuff:
p. 616
23a: 0.0054
23b: 0.011
p. 632
91: 0.0069
92: 0.0014
p. 884
20: 2.2x10^ -9
21: 1.4 x 10^ -5
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