Ionic Equilibria and Acid-Base Concepts

Quiz
•
Science
•
Professional Development
•
Hard
Future Education
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the hydrolysis constant (Kh) for a weak acid?
Kh = Kw - Ka
Kh = Kw / Ka
Kh = Ka / Kw
Kh = Ka + Kw
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How is the degree of hydrolysis (α) defined?
α = (initial amount / amount hydrolyzed) x 100%
α = (amount hydrolyzed / total amount) x 100%
α = (amount hydrolyzed / initial amount) x 100%
α = (final amount / initial amount) x 100%
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following factors affects buffer capacity?
Presence of salts
Temperature of the solution
Type of container used
Concentration of buffering agents and pH of the solution
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the formula for calculating buffer capacity?
Buffer Capacity = ΔB + ΔpH
Buffer Capacity = ΔpH / ΔB
Buffer Capacity = ΔB * ΔpH
Buffer Capacity = ΔB / ΔpH
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which indicator is commonly used for strong acid-strong base titrations?
Bromothymol blue
Methyl orange
Litmus paper
Phenolphthalein
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the pH range of phenolphthalein as an indicator?
4.0 to 6.5
8.2 to 10.0
6.0 to 7.5
10.5 to 12.0
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a pH titration curve, what does the steepest slope indicate?
The equivalence point of the titration.
The initial pH of the solution.
The concentration of the titrant.
The buffer capacity of the solution.
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