1. What is the conjugate base for HNO2?
a. HNO3
b. H2NO2
c. NO2-
d. NO-2
2. Which of the following is a conjugate acid/base pair?
A. HCl/OCl-
B. H2SO4/SO42-
C. NH4+/NH3
D. H3O+/OH-
3. Given the following acids and Ka values:
HCN = 4.93 x 10-10
HF = 3.53 x 10-4
HOAc = 1.76 x 10-5
Which acid is the strongest?
A. HOAc
B. HCN
C. HF
D. All are equally strong
4. Calculate the [H+] in a solution that has a pH of 11.70
A. 2.3 M
B. 11.7 M
C. 5 x 10-3 M
D. 4 x 10-11 M
E. 2 x 10-12 M
5. The pH of a solution in which the [OH-] = 3.4 x 10-5 M is
A. 4.5
B. 10.5
C. 9.5
D. 6.3
E. 12.1
1. What is the conjugate base for HNO2?
a. HNO3
b. H2NO2
c. NO2-
d. NO-2
2. Which of the following is a conjugate acid/base pair?
A. HCl/OCl-
B. H2SO4/SO42-
C. NH4+/NH3
D. H3O+/OH-
3. Given the following acids and Ka values:
HCN = 4.93 x 10-10
HF = 3.53 x 10-4
HOAc = 1.76 x 10-5
Which acid is the strongest?
A. HOAc
B. HCN
C. HF
D. All are equally strong
4. Calculate the [H+] in a solution that has a pH of 11.70
A. 2.3 M
B. 11.7 M
C. 5 x 10-3 M
D. 4 x 10-11 M
E. 2 x 10-12 M
5. The pH of a solution in which the [OH-] = 3.4 x 10-5 M is
A. 4.5
B. 10.5
C. 9.5
D. 6.3
E. 12.1
Related textbook solutions
Basic Chemistry
Principles of Chemistry Molecular Approach
Principles of Chemistry Molecular Approach
Chemistry: Structure and Properties
Chemistry: A Molecular Approach
Chemistry: A Molecular Approach
Principles of Chemistry: A Molecular Approach
Chemistry: The Central Science
Related questions
Given the following acids and Ka values:
| HClO4 | HOAc | HCN | HF |
| 1 x 107 | 1.76 x 10-5 | 4.93 x 10-10 | 3.53 x 10-4 |
What is the order of increasing base strength?
a. CN-, ClO4-, F-, OAc-
b. ClO4-, OAc-, CN-, F-
c. CN-, F-, OAc-, ClO4-,
d. ClO4-, F-, OAc-, CN-
e. CN-,OAc-, F-, ClO4-
