PRACTICE EXAM 2 (CHEM 162)
QUESTIONS AND ANSWERS
For the cell representation: Au ; Au3+ || Ag+ ; Ag:
A. Au is the anode
B. Au is the cathode - Correct Answers -A. Au is the anode
For a solution with pH = 9.45, the [OH-] is:
A. 2.8 x 10^-5
B. 3.5 x 10^-10
C. 1.0 x 10^-7 - Correct Answers -A. 2.8 x 10^-5
KOH is considered a strong acid.
True
False - Correct Answers -False
A solution with pH = 10.0 is acidic.
True
False - Correct Answers -False
A buret is used in:
A. Titration
B. Gas Chromotography
C. Mass Spectronomy - Correct Answers -A. Titration
The conjugate base for HNO3 is considered:
A. Weak
B. Has pH of < 7.0
C. Strong - Correct Answers -A. Weak
The ion product of a salt dissolved in water is less than its Ksp value. In this case a
precipitate:
, A. Will form
B. Will not form
C. Not enough information - Correct Answers -B. Will not form
A solution has pH of 4.0. When acid is added to the solution, its pH stays constant at
4.0. This solution is a:
A. Buffer
B. Gaseous
C. Basic - Correct Answers -A. Buffer
The K+ ion will hydrolyze
True
False - Correct Answers -True
The unit for electrical potential is the ohm (Ω)
True
False - Correct Answers -False
The equation used when the aqueous ion concentrations are not 1.0M is called the:
A. Ideal Gas Law
B. Van der Waals Equation
C. Nersnt Equation - Correct Answers -C. Nersnt Equation
A electrochemical cell has a potential of -1.20V. This is a(n):
A. Electrolytic Cell
B. Jail Cell
C. Voltaic Cell - Correct Answers -A. Electrolytic Cell
When solid aluminum is placed in an aqueous solution of copper ions:
A. The Cu2+ will be oxidized and the aluminum reduced
B. The aluminum will be oxidized and the Cu2+ reduced
C. No Reaction - Correct Answers -B. The aluminum will be oxidized and the Cu2+
reduced
A solution with pH 4.0 is:
A. Neutral
B. Basic
C. Acidic - Correct Answers -C. Acidic
QUESTIONS AND ANSWERS
For the cell representation: Au ; Au3+ || Ag+ ; Ag:
A. Au is the anode
B. Au is the cathode - Correct Answers -A. Au is the anode
For a solution with pH = 9.45, the [OH-] is:
A. 2.8 x 10^-5
B. 3.5 x 10^-10
C. 1.0 x 10^-7 - Correct Answers -A. 2.8 x 10^-5
KOH is considered a strong acid.
True
False - Correct Answers -False
A solution with pH = 10.0 is acidic.
True
False - Correct Answers -False
A buret is used in:
A. Titration
B. Gas Chromotography
C. Mass Spectronomy - Correct Answers -A. Titration
The conjugate base for HNO3 is considered:
A. Weak
B. Has pH of < 7.0
C. Strong - Correct Answers -A. Weak
The ion product of a salt dissolved in water is less than its Ksp value. In this case a
precipitate:
, A. Will form
B. Will not form
C. Not enough information - Correct Answers -B. Will not form
A solution has pH of 4.0. When acid is added to the solution, its pH stays constant at
4.0. This solution is a:
A. Buffer
B. Gaseous
C. Basic - Correct Answers -A. Buffer
The K+ ion will hydrolyze
True
False - Correct Answers -True
The unit for electrical potential is the ohm (Ω)
True
False - Correct Answers -False
The equation used when the aqueous ion concentrations are not 1.0M is called the:
A. Ideal Gas Law
B. Van der Waals Equation
C. Nersnt Equation - Correct Answers -C. Nersnt Equation
A electrochemical cell has a potential of -1.20V. This is a(n):
A. Electrolytic Cell
B. Jail Cell
C. Voltaic Cell - Correct Answers -A. Electrolytic Cell
When solid aluminum is placed in an aqueous solution of copper ions:
A. The Cu2+ will be oxidized and the aluminum reduced
B. The aluminum will be oxidized and the Cu2+ reduced
C. No Reaction - Correct Answers -B. The aluminum will be oxidized and the Cu2+
reduced
A solution with pH 4.0 is:
A. Neutral
B. Basic
C. Acidic - Correct Answers -C. Acidic
