A few common weak acids with their acid dissociation constants,Ka, are listed in the table: Acid Ka
Question:
A few common weak acids with their acid dissociation constants,Ka, are listed in the table:
Acid | Ka |
HOAc | 1.8 × 10-5 |
HCHO2 | 1.8 × 10-4 |
HClO | 3.0 × 10-8 |
HF | 6.8 × 10-4 |
Rank the acids above from weakest to strongest.
Which acid above has the weakest conjugate base?
question 2
What is the pH of a 0.0015 M HClO3 solutionat 25.0 °C?
Group of answer choices
3.82
2.82
6.50
-6.50
11.18
Flag question: Question 19
The pH of an aqueous solution at 25.0 °C is 10.30. What is themolarity of OH- in this solution?
Group of answer choices
5.0 x 10-11
2.0 x 10-4
3.70
1.0 x 10-13
2.0 x 1010
Flag question: Question 20
Which of the following aqueous solutions has the lowest[OH-]?
Group of answer choices
a solution with a pH of 3.0
a 1 x 10-4 M solution of HNO3
a solution with a pOH of 12.0
pure water
a 1 x 10-3 M solution of HF
Flag question: Question 21
Calculate the concentration (in M) of hydronium ions in asolution at 25.0 °C with a pOH of 4.223.
Group of answer choices
5.98 x 10-5
1.67 x 10-10
1.67 x 104
5.99 x 10-19
1.00 x 10-7
Question
The acid-dissociation constant, Ka, for an unknown acid HA is4.57 × 10-3. What is the base-dissociation constant, Kb, for theunknown anion A-?
Group of answer choices
2.19 × 10-12
7.81 × 10-6
2.19 × 102
5.43 × 10-5
4.57 × 10-3
Automation Production Systems and Computer Integrated Manufacturing
ISBN: 978-0132393218
3rd edition
Authors: Mikell P.Groover