.//.//.,…//////////./././././.;;;../.;.//;./.;./;.;.;/
University of New England General Chemistry II
Midterm Weeks 1 - 7 | Latest 2026/2027 Update |
Complete Study Guide | Practice Questions,
Detailed Answer Explanations & Chemistry
Exam Revie w
W2, Q2
Which of the following will have the highest vapor pressure?
A) 0.1 M NaCl in water
B) 0.5 M NaCl in water
C) 1.0 M NaCl in water
D) 2.0 M NaCl in water
0.1 M NaCl in water
W5, Q5
In the unfinished ICE table
______________2 NO + Cl2 ⇌ 2NOCl
Initial ______.15 M__.15M_______ 0
Change
1
,.//.//.,…//////////./././././.;;;../.;.//;./.;./;.;.;/
Eq _________________________________0?
What will be the expression for the equilibrium concentration of NOCl?
A) x
B) 2x
C) 0.150 + x
D) 0.150 - x
2x
W4, Q4
Which of the following is true about reaction mechanisms?
A) Elementary reactions produce unstable transition states
B) The molecularity of a reaction is the number of intermediate steps in a reaction
C) A reaction mechanism includes intermediates that aren't represented as products or reactants
in a balanced chemical equation
D) The rate-limiting step is the fastest step in a reaction mechanism
A reaction mechanism includes intermediates that aren't represented as products or reactants in a
balanced chemical equation
Each step in a reaction mechanism is an elementary reaction.
2
,.//.//.,…//////////./././././.;;;../.;.//;./.;./;.;.;/
W6, Q6
Tartaric acid is a weak acid that is commonly added to wine to prevent spoilage during
fermentation. A 0.175 M solution of tartaric acid has a pH of 2.08.
What is the percent ionization of tartaric acid?
A) 2.8 %
B) 5.3 %
C) 4.8 %
D) 3.6 %
4.8%
W6, Q6
Pyridine is a weak base with the chemical formula C5H5N. What is the value of Kb for a 0.175
M solution of pyridine if the solution at equilibrium has [C5H5NH+] = 1.80 x 10^-5 M and [OH-
] = 1.41 x 10^-5?
A) 1.45 x 10^-9 M
B) 1.85 x 10^-9 M
C) 1.70 x 10^-9 M
D) 1.14 x 10^-9 M
3
, .//.//.,…//////////./././././.;;;../.;.//;./.;./;.;.;/
1.45 x 10^-9 M
W6
In the reaction
CN- + H2O ⇄ HCN + OH-
which is an acid-base conjugate pair?
A) H2O and OH-
B) HCN and OH-
C) H2O and HCN
D) CN- and H2O
H2O and OH-
W6
A can of sparkling water has a hydronium ion concentration of 1.5 x 10-4 M. What is the pH of
the sparkling water?
4
University of New England General Chemistry II
Midterm Weeks 1 - 7 | Latest 2026/2027 Update |
Complete Study Guide | Practice Questions,
Detailed Answer Explanations & Chemistry
Exam Revie w
W2, Q2
Which of the following will have the highest vapor pressure?
A) 0.1 M NaCl in water
B) 0.5 M NaCl in water
C) 1.0 M NaCl in water
D) 2.0 M NaCl in water
0.1 M NaCl in water
W5, Q5
In the unfinished ICE table
______________2 NO + Cl2 ⇌ 2NOCl
Initial ______.15 M__.15M_______ 0
Change
1
,.//.//.,…//////////./././././.;;;../.;.//;./.;./;.;.;/
Eq _________________________________0?
What will be the expression for the equilibrium concentration of NOCl?
A) x
B) 2x
C) 0.150 + x
D) 0.150 - x
2x
W4, Q4
Which of the following is true about reaction mechanisms?
A) Elementary reactions produce unstable transition states
B) The molecularity of a reaction is the number of intermediate steps in a reaction
C) A reaction mechanism includes intermediates that aren't represented as products or reactants
in a balanced chemical equation
D) The rate-limiting step is the fastest step in a reaction mechanism
A reaction mechanism includes intermediates that aren't represented as products or reactants in a
balanced chemical equation
Each step in a reaction mechanism is an elementary reaction.
2
,.//.//.,…//////////./././././.;;;../.;.//;./.;./;.;.;/
W6, Q6
Tartaric acid is a weak acid that is commonly added to wine to prevent spoilage during
fermentation. A 0.175 M solution of tartaric acid has a pH of 2.08.
What is the percent ionization of tartaric acid?
A) 2.8 %
B) 5.3 %
C) 4.8 %
D) 3.6 %
4.8%
W6, Q6
Pyridine is a weak base with the chemical formula C5H5N. What is the value of Kb for a 0.175
M solution of pyridine if the solution at equilibrium has [C5H5NH+] = 1.80 x 10^-5 M and [OH-
] = 1.41 x 10^-5?
A) 1.45 x 10^-9 M
B) 1.85 x 10^-9 M
C) 1.70 x 10^-9 M
D) 1.14 x 10^-9 M
3
, .//.//.,…//////////./././././.;;;../.;.//;./.;./;.;.;/
1.45 x 10^-9 M
W6
In the reaction
CN- + H2O ⇄ HCN + OH-
which is an acid-base conjugate pair?
A) H2O and OH-
B) HCN and OH-
C) H2O and HCN
D) CN- and H2O
H2O and OH-
W6
A can of sparkling water has a hydronium ion concentration of 1.5 x 10-4 M. What is the pH of
the sparkling water?
4
