CHEM 1310: Update
Final Exam: Mon, Dec 10 (2:50 - 5:40 pm)
Exam 1
Chapters
1-5
Exam 3
Fri., Nov 16
Exam 2
Exam 3
Chapters
12, 13, 16, 17
Chapters
6-9
Chapters
10, 15
 Chemical Equilibrium
 Acids and Bases
 Applications of Aqueous Equilibria
 Energy, Enthalpy, and Thermochemistry
Week 12
CHEM 1310 - Sections L and M
1
PRS Question
 Consider the reaction
2 BrCl(g)
Br2 (g) + Cl2(g)
If the equilibrium partial pressure for Br2 is 0.510
atm and that for Cl2 is 0.150 atm, what is the
equilibrium partial pressure for BrCl?
1. 0.225 atm
4. 4.45 atm
2. 0.474 atm
5. None of these
3. 2.11 atm
Week 12
CHEM 1310 - Sections L and M
2
PRS Question
 Consider the reaction
2 BrCl(g)
Br2 (g) + Cl2(g)
If the equilibrium partial pressure for Br2 is 0.510
atm and that for Cl2 is 0.150 atm, what is the
equilibrium partial pressure for BrCl?
1. 0.225 atm
4. 4.45 atm
2. 0.474 atm
5. None of these
3. 2.11 atm
Week 12
CHEM 1310 - Sections L and M
3
1
PRS Question
If the equilibrium constants for the following rxns are:
P4 (g) + 6Cl2(g)
4 PCl3 (g) K 1
PCl3(g) + Cl2 (g)
PCl5 (g)
K2
What is the equilibrium constant for the reaction
below?
P4 (g) + 10Cl2(g)
4 PCl5 (g)
1. K1K2
4. K1(K2) 4
2. 4K1K 2
5. None of these
3. (K1 K 2)/4
Week 12
CHEM 1310 - Sections L and M
4
PRS Question
If the equilibrium constants for the following rxns are:
P4 (g) + 6Cl2(g)
PCl3(g) + Cl2 (g)
4 PCl3 (g) K1
PCl5(g)
K2
What is the equilibrium constant for the reaction
below?
P4 (g) + 10Cl2(g)
4 PCl5 (g)
1. K1K2
4. K1(K2) 4
2. 4K1K 2
5. None of these
3. (K1 K 2)/4
Week 12
CHEM 1310 - Sections L and M
5
PRS Question
 Acids and bases are defined by their
production of hydronium or hydroxide ions
when dissolved in water according to the:
1. Arrhenius model
2. Bronsted-Lowry model
3. Lewis model
4. All of these
5. None of these
Week 12
CHEM 1310 - Sections L and M
6
2
PRS Question
 Acids and bases are defined by their
production of hydronium or hydroxide ions
when dissolved in water according to the:
1. Arrhenius model
2. Bronsted-Lowry model
3. Lewis model
4. All of these
5. None of these
Week 12
CHEM 1310 - Sections L and M
7
PRS Question
 For an aqueous solution at 25°C, if [H3O+] =
0.050 M, then [OH-] = ?
1. 2.0 x 10-12 M
2. 1.0 x 10-7 M
3. 2.0 x 10-6 M
4. 5.0 x 10-2 M
5. None of these
Week 12
CHEM 1310 - Sections L and M
8
PRS Question
 For an aqueous solution at 25°C, if [H3O+] =
0.050 M, then [OH-] = ?
1. 2.0 x 10-12 M
2. 1.0 x 10-7 M
3. 2.0 x 10-6 M
4. 5.0 x 10-2 M
5. None of these
Week 12
CHEM 1310 - Sections L and M
9
3
PRS Question
 At 25°C an aqueous NaOH solution of pH
12.4 is diluted with water to ten times its
original volume. The pH of the resulting
solution is:
1. 11.4
2. 11.8
4. 13.4
5. None of these
3. 12.1
Week 12
CHEM 1310 - Sections L and M
10
PRS Question
 At 25°C an aqueous NaOH solution of pH
12.4 is diluted with water to ten times its
original volume. The pH of the resulting
solution is:
1. 11.4
2. 11.8
4. 13.4
5. None of these
3. 12.1
Week 12
CHEM 1310 - Sections L and M
11
PRS Question
 Cadmium hydroxide has a solubility in water
at 25°C of 1.7 x 10-5 M.
 In the chemical equation describing the
dissolution of Cd(OH)2 (s) in water, the
stoichoimetric coefficient for the hydroxide
ion is:
1. -2
4. 1
2. 2
5. None of these
3. 0
Week 12
CHEM 1310 - Sections L and M
12
4
PRS Question
 Cadmium hydroxide has a solubility in water
at 25°C of 1.7 x 10-5 M.
 In the chemical equation describing the
dissolution of Cd(OH)2 (s) in water, the
stoichoimetric coefficient for the hydroxide
ion is:
1. -2
4. 1
2. 2
5. None of these
3. 0
Week 12
CHEM 1310 - Sections L and M
13
PRS Question
 Cadmium hydroxide has a solubility in water
at 25°C of 1.7 x 10-5 M.
 The value of Ksp for Cd(OH)2 (s) at 25°C is:
1. 1.2 x 10-9
2. 2.9 x 10-10
3. 2.0 x 10-14
4. 4.9 x 10-15
5. None of these
Week 12
CHEM 1310 - Sections L and M
14
PRS Question
 Cadmium hydroxide has a solubility in water
at 25°C of 1.7 x 10-5 M.
 The value of Ksp for Cd(OH)2 (s) at 25°C is:
1. 1.2 x 10-9
2. 2.9 x 10-10
3. 2.0 x 10-14
4. 4.9 x 10-15
5. None of these
Week 12
CHEM 1310 - Sections L and M
15
5
PRS Question
 Consider the following ∆H°formation:




Glucose
CO2(g)
H2O(l)
O2 (g)
C6 H12O 6 (s)
-1274 kJ/mol
-393 kJ/mol
-286 kJ/mol
0 kJ/mol
Calculate the heat of combustion of glucose to carbon
dioxide and liquid water.
Week 12
CHEM 1310 - Sections L and M
16
PRS Question
Calculate the heat of combustion of glucose to carbon
dioxide and liquid water.
1. -2872 kJ/mol
2. -1953 kJ/mol
3. -595 kJ/mol
4. 595 kJ/mol
5. None of these
Week 12
CHEM 1310 - Sections L and M
17
PRS Question
Calculate the heat of combustion of glucose to carbon
dioxide and liquid water.
1. -2872 kJ/mol
2. -1953 kJ/mol
3. -595 kJ/mol
4. 595 kJ/mol
5. None of these
Week 12
CHEM 1310 - Sections L and M
18
6
Review Summary
 Study guide online later today
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 Remember to fill in:
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Exam Version
Week 12
CHEM 1310 - Sections L and M
19
7