Which of the following statements is true about the relationship between pKa and acid strength?

Understanding Acid Strengths, pKa, and Ka

Interactive Video
•
Chemistry, Science
•
10th - 12th Grade
•
Hard

Ethan Morris
FREE Resource
Read more
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
pKa does not affect acid strength
Lower pKa means stronger acid
Lower pKa means weaker acid
Higher pKa means stronger acid
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given the pKa values, which acid is stronger: acetic acid (pKa 4.76) or formic acid (pKa 3.75)?
Cannot be determined
Acetic acid
Formic acid
Both are equally strong
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Between ethanol and methanol, which has a lower pKa and is therefore a stronger acid?
Both have the same pKa
Methanol
Ethanol
Cannot be determined
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the pKa value of methanol?
15.9
3.75
15.5
4.76
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the Ka value relate to acid strength?
Lower Ka means stronger acid
Higher Ka means stronger acid
Ka does not affect acid strength
Higher Ka means weaker acid
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which acid is stronger based on Ka: HF (Ka = 6.3 x 10^-4) or H2S (Ka = 1 x 10^-7)?
HF
Both are equally strong
Cannot be determined
H2S
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Between NH4+ and CH3NH3+, which has a higher Ka and is therefore a stronger acid?
NH4+
CH3NH3+
Both have the same Ka
Cannot be determined
Create a free account and access millions of resources
Similar Resources on Wayground
11 questions
Titration Concepts and Calculations

Interactive video
•
10th - 12th Grade
6 questions
Acid Strength and the Inductive Effect: What’s the Connection?

Interactive video
•
10th Grade - University
11 questions
Acid Strength and pKa Relationships

Interactive video
•
11th - 12th Grade
11 questions
Acid-Base Concepts and Reactions

Interactive video
•
10th - 12th Grade
11 questions
Carboxylic Acids and Their Properties

Interactive video
•
11th - 12th Grade
11 questions
Acid-Base Chemistry Concepts

Interactive video
•
10th - 12th Grade
11 questions
Understanding Acid-Base Reactions and Equilibrium

Interactive video
•
10th - 12th Grade
6 questions
Acid Strength and the Inductive Effect: What’s the Connection?

Interactive video
•
10th Grade - University
Popular Resources on Wayground
25 questions
Equations of Circles

Quiz
•
10th - 11th Grade
30 questions
Week 5 Memory Builder 1 (Multiplication and Division Facts)

Quiz
•
9th Grade
33 questions
Unit 3 Summative - Summer School: Immune System

Quiz
•
10th Grade
10 questions
Writing and Identifying Ratios Practice

Quiz
•
5th - 6th Grade
36 questions
Prime and Composite Numbers

Quiz
•
5th Grade
14 questions
Exterior and Interior angles of Polygons

Quiz
•
8th Grade
37 questions
Camp Re-cap Week 1 (no regression)

Quiz
•
9th - 12th Grade
46 questions
Biology Semester 1 Review

Quiz
•
10th Grade