ACS Gen Chem 2 Final Exam Study Guide Exam
Questions with 100% Correct Answers Latest
Versions Top Rated
A
Which 0.1 molal aqueous solution will have the lowest freezing point?
(A) Al(NO3)3
(B) CaCl2
(C) C2H5OH
(D) NaCl
B
What is the rate law of this reaction?
2H2 (g) + 2NO (g) --> N2 (g) + 2H2O (g)
(A) rate = k[H2]^2 [NO]
(B) rate = k[H2] [NO]^2
(C) rate = k[H2]^2 [NO]^2
(D) rate = k[N2] [H2O]^2 / [H2]^2 [NO]^2
B
The rate law for the reaction
A + B --> C + D
is first order in [A] and second order in [B]. If [A] is halved and [B] is
doubled, the rate of the reaction will
(A) remain the same
(B) be increased by a factor of 2
,(C) be increased by a factor of 4
(D) be increased by a factor of 8
C
The half-life for the first order conversion of cyclobutene to ethylene,
C4H8 (g) --> 2C2H4 (g)
is 22.7 s at a particular temperature. How many seconds are needed for
the partial pressure of cyclobutane to decrease from 100 mmHg to 10
mmHg?
(A) 0.101 s
(B) 52.0 s
(C) 75.5 s
(D) 5233 s
A
The half-life for the first-order radioactive decay of 32P is 14.3 days.
How many days would be required for a sample of a radio
pharmaceutical containing 32P to decrease to 20.0% of its initial
activity?
(A) 33.0 d
(B) 49.2 d
(C) 71.0 d
(D) 286 d
D
Plots are shown for the reaction N02 (g) --> NO (g) + 1/2 O2 (g)
, What is the rate law for the reaction?
(A) rate = k
(B) rate = k x 1/[NO2]
(C) rate = k[NO2]
(D) rate = k[NO2]^2
A
What changes when a catalyst is added to the reaction described by this
energy diagram?
(A) I and II
(B) I and III
(C) I only
(D) III only
C
Which statement regarding chemical reactions is true according to
collision theory?
(A) All molecular collisions result in chemical equations.
(B) Catalysts make individual collisions more effective, increasing
reaction rates.
(C) Proper orientation of molecules is required for collision to result in
chemical reactions.
(D) Increasing the temperature of a reaction decreases the kinetic
energy of molecules, making collisions more effective.
B
Questions with 100% Correct Answers Latest
Versions Top Rated
A
Which 0.1 molal aqueous solution will have the lowest freezing point?
(A) Al(NO3)3
(B) CaCl2
(C) C2H5OH
(D) NaCl
B
What is the rate law of this reaction?
2H2 (g) + 2NO (g) --> N2 (g) + 2H2O (g)
(A) rate = k[H2]^2 [NO]
(B) rate = k[H2] [NO]^2
(C) rate = k[H2]^2 [NO]^2
(D) rate = k[N2] [H2O]^2 / [H2]^2 [NO]^2
B
The rate law for the reaction
A + B --> C + D
is first order in [A] and second order in [B]. If [A] is halved and [B] is
doubled, the rate of the reaction will
(A) remain the same
(B) be increased by a factor of 2
,(C) be increased by a factor of 4
(D) be increased by a factor of 8
C
The half-life for the first order conversion of cyclobutene to ethylene,
C4H8 (g) --> 2C2H4 (g)
is 22.7 s at a particular temperature. How many seconds are needed for
the partial pressure of cyclobutane to decrease from 100 mmHg to 10
mmHg?
(A) 0.101 s
(B) 52.0 s
(C) 75.5 s
(D) 5233 s
A
The half-life for the first-order radioactive decay of 32P is 14.3 days.
How many days would be required for a sample of a radio
pharmaceutical containing 32P to decrease to 20.0% of its initial
activity?
(A) 33.0 d
(B) 49.2 d
(C) 71.0 d
(D) 286 d
D
Plots are shown for the reaction N02 (g) --> NO (g) + 1/2 O2 (g)
, What is the rate law for the reaction?
(A) rate = k
(B) rate = k x 1/[NO2]
(C) rate = k[NO2]
(D) rate = k[NO2]^2
A
What changes when a catalyst is added to the reaction described by this
energy diagram?
(A) I and II
(B) I and III
(C) I only
(D) III only
C
Which statement regarding chemical reactions is true according to
collision theory?
(A) All molecular collisions result in chemical equations.
(B) Catalysts make individual collisions more effective, increasing
reaction rates.
(C) Proper orientation of molecules is required for collision to result in
chemical reactions.
(D) Increasing the temperature of a reaction decreases the kinetic
energy of molecules, making collisions more effective.
B
