
CHECC481 Analytical Chemistry
Authored by 1476 Kirsten Gail Miaga
Science
University
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The pH of 10-4 gmol hydrogen ion per liter of a solution is
7
8
5
4
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The hydrogen ion concentration of a solution is a thousand times greater than the hydroxide ion concentration. Find the pH of the solution.
8.5
7.5
5.5
6.5
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A certain aqueous solution at 25ºC has [OH-] = 6.2 E -5 M. Calculate the pH of the solution.
4.21
5.80
8.20
9.79
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A 0.01 M weak acid (contains one replaceable hydrogen) is 4.17% ionized. What is the ionization constant?
1.8E-5
1.2E-4
3.6E-5
1.2E-5
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the concentration of an HCN solution which is 0.02% ionized? Ka = 4E-10.
0.001 M
0.01 M
0.1 M
1 M
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the pH of a 0.10 M solution of nitrous acid (HNO2)? Ka = 7.2E-4
1.43
4.24
2.09
2.85
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the pH of 7.0E- 8 M acetic acid?
6.85
4.76
8.90
5.76
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