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Chemistry 121 Name __________________________________________Fall – 2011 Instructor: Dr. Senkbeil
CHAPTER TEN
Directions:
< Assignments may be periodically collected at the beginning of lecturefollowing the completion of the chapter (and graded as a quiz) and/orrepresentative problems can be placed on quizzes.
< Place your name and/or initials at the top of all pages submitted.
< Solve each of the following problems, showing all work for full credit.
< If an equation is involved, show the equation, the appropriate substitution(with units), and the solution (with units).
< If a chemical equation is required (and is not given), then the balancedequation should be shown.
< If the problem involves math (unit conversion/factor label), show the unitsand unit cancellation in arriving at your answer for full credit.
< To receive full credit – if the units in the problem pertain to a particularsubstance, state the substance (i.e. if you are talking about grams of gold –state grams Au - not just grams).
< All answers should be reported with the correct units to receive full credit.
< All answers should be reported with the correct number of significantdigits to receive full credit.
< Only neat, clearly labeled work will receive full credit.
< Place your final answer on the blanks or in the box provided.
< Please print and write on only one side of each pageyou use. Assignments printed on two sides of thepaper will not be graded.
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Name ______________________________
Suggested Problems:
< Chapter Ten (Chemistry – A Molecular Approach – 2 Edition)nd
< Pages 447 – 453.
< Problems: 32, 36 (a, b, c, d), 40 (a, b, d), 42 a, 48, 50, 52 (b, d), 60,68 and 88.
32. Circle the correct response:
1 2 3 4 5 6
36/50. Complete the following table:
4a. Lewis Structure for CF : 3b. Lewis Structure for NF :
Electron Geometry: Electron Geometry:
Molecular Geometry: Molecular Geometry:
Idealized Bond Angle(s): Idealized Bond Angle(s):
Expected Deviations from Ideal:
YES NO
Expected Deviations from Ideal:
YES NO
Polar Non-Polar Polar Non-Polar
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Name ______________________________
36/50. Continued
Complete the following table:
2c. Lewis Structure for OF : 2d. Lewis Structure for H S:
Electron Geometry: Electron Geometry:
Molecular Geometry: Molecular Geometry:
Idealized Bond Angle(s): Idealized Bond Angle(s):
Expected Deviations from Ideal:
YES NO
Expected Deviations from Ideal:
YES NO
Polar Non-Polar Polar Non-Polar
4
Name ______________________________
40. Complete the following table:
5a. Lewis Structure for BrF : 6b. Lewis Structure for SCl :
Electron Geometry: Electron Geometry:
Molecular Geometry: Molecular Geometry:
3-D Sketch of Molecule 3-D Sketch of Molecule
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Name ______________________________
40. Continued:
Complete the following table:
4d. Lewis Structure for IF :+
Electron Geometry:
Molecular Geometry:
3-D Sketch of Molecule
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Name ______________________________
242. a. N
2a. Lewis Structure for N :
Electron Geometry:
Molecular Geometry:
1 N _________________________
2 N _________________________
3-D Sketch of Molecule
48. ________________________________________________________________________
________________________________________________________________________
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Name ______________________________
50. See addition to Problem 36.
52. Complete the following table:
2 2b. Lewis Structure for CF Cl : 5d. Lewis Structure for IF :
Polar Non-Polar Polar Non-Polar
60. Circle the correct response(s): sp sp d sp3 3 2
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Name ______________________________
68. Indicate the hybridization for C-1 and C-2 in the following molecule:
Hybridization of C-1: s sp sp2
sp sp d sp d3 3 3 2
Hybridization of C-2: s sp sp2
sp sp d sp d3 3 3 2
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Name ______________________________
88. Indicate the number of pi and sigma bonds only for the following molecule:
Number of Sigma Bonds: ____________
Number of Pi Bonds: ____________
10
Name ______________________________
Answers to Suggested Problems:
32.
36/50.
11
Name ______________________________
36/50. (Continued)
b.
12
Name ______________________________
40. a.
52. b.
60. sp d3
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Name ______________________________
68. Hybridization of C-1: sp2
Hybridization of C-2: sp3
88. Number of Sigma Bonds: 21
Number of Pi Bonds: 5
