Chem 162 exam
CHEM 162 EXAM 2 (2025) QUESTIONS
AND VERIFIED SOLUTIONS
Chloris acid is stronger than hydrofluoric acid
True
False - true
A solution with pH = 10.0 is acidic
True
False - false
If the ion product of barium sulfate is 1.0 x 10-9 a precipitate will form
True
False - true
For a solution with pH = 9.45, the [OH-] is:
A. 1.0 x 10-7
B. 2.8 x 10-5
C. 3.5 x 10-10 - B
When a chemical system is at equilibrium, the concentrations of reactants and products
must be equal.
Chem 162 exam
, Chem 162 exam
True
False - false
KOH is considered a strong acid
True
False - true
In a titration, 25.00ml of a 0.10MHCl solution requires 25.00mL of a 0.10M NaOH to
reach equivalence point
True
False - true
Identify the equation for which Keq = [Cu+]2[ S2-].
A. Cu 2S(s) Cu+(aq) + S 2-(aq)
B. Cu2S(s) 2Cu+(aq) + S2-(aq)
C. CuS(s) Cu2+(aq) + S2-(aq)
D. Cu2S(s) Cu+(aq) + 2S2-
(aq)
E. none of the above - B
The equation: HCl + H2O → H3O+ + Cl- represents the _______________ theory
Chem 162 exam
CHEM 162 EXAM 2 (2025) QUESTIONS
AND VERIFIED SOLUTIONS
Chloris acid is stronger than hydrofluoric acid
True
False - true
A solution with pH = 10.0 is acidic
True
False - false
If the ion product of barium sulfate is 1.0 x 10-9 a precipitate will form
True
False - true
For a solution with pH = 9.45, the [OH-] is:
A. 1.0 x 10-7
B. 2.8 x 10-5
C. 3.5 x 10-10 - B
When a chemical system is at equilibrium, the concentrations of reactants and products
must be equal.
Chem 162 exam
, Chem 162 exam
True
False - false
KOH is considered a strong acid
True
False - true
In a titration, 25.00ml of a 0.10MHCl solution requires 25.00mL of a 0.10M NaOH to
reach equivalence point
True
False - true
Identify the equation for which Keq = [Cu+]2[ S2-].
A. Cu 2S(s) Cu+(aq) + S 2-(aq)
B. Cu2S(s) 2Cu+(aq) + S2-(aq)
C. CuS(s) Cu2+(aq) + S2-(aq)
D. Cu2S(s) Cu+(aq) + 2S2-
(aq)
E. none of the above - B
The equation: HCl + H2O → H3O+ + Cl- represents the _______________ theory
Chem 162 exam
