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- 1. Multiple Choice
Which of the following is false for a base?
tastes bitter
feels slippery
reacts with metals to form H2
turns red litmus blue
- 2. Multiple Choice
Which of the following is an Arrhenius base?
KOH
H2CO3
NaCl
NH3
- 3. Multiple Choice
An acidic solution:
has [H3O+]=1x10^-14M
has pOH < 7
has pOH >7
turns red litmus blue
- 4. Multiple Choice
If a solution has a [H3O+] of 1 x 10-3M, then the [OH-] would be:
1x10-3 M
1x10-14 M
1x10-11 M
1x10-7 M
- 5. Multiple Choice
The conjugate acid of HPO4 2- is:
H3PO4
H2PO4-
PO43-
H4PO4+
- 6. Multiple Choice
Which acid would have the highest percent ionization in water?
boric acid
hydrofluoric acid
nitrous acid
ethanoic acid
- 7. Multiple Choice
A solution turns yellow in chlorophenol red and yellow in methyl orange. The pH of the solution could be:
5.4
4.2
4.8
7.0
- 8. Multiple Choice
Determine the pH of a 0.120 M solution of Ba(OH)2.
0.240
4.17x10-14
0.620
13.380
- 9. Multiple Choice
Calculate the Ka of a weak acid if a 0.340M solution has a pH of 3.52
3.02x10-4
2.7x10-7
10.48
9.12x10-8
- 10. Multiple Choice
Which acid would produce 5.0M H3O+ ions in solution?
5.0M HF
5.0M H2S
5.0M NH3
5.0M HBr
- 11. Multiple Choice
The titration curve below represents
strong base added to strong acid
strong acid added to strong base
strong acid added to weak base
weak base added to strong acid
- 12. Multiple Choice
The pH of a solution which turns phenolphthalein pink and indigo carmine blue could be:
8.1
12.0
4.5
10.5
- 13. Multiple Choice
A Bronsted-Lowry acid
produces hydroxide ions in a solution
is a proton donor
has a pH greater than 7 in solution
is a proton acceptor
- 14. Multiple Choice
Which of the following is NOT a property of an acid?
conducts electricity
feels slippery
turns blue litmus paper red
reacts with metals
- 15. Multiple Choice
The conjugate base of HCO3- is:
CO3-2
H2CO3
H3CO3
OH-
- 16. Multiple Choice
Which of the following is NOT a characteristic of a weak acid dissolved in water?
dissociates 100% into ions
produces a solution with pH <7
produces H3O+ ions
is a proton donor
- 17. Multiple Choice
This titration curve represents which situation?
strong acid with a strong base
strong base with a strong acid
weak acid with a strong base
weak base with a strong acid
- 18. Multiple Choice
For the reaction of HCO3- and HPO42-, which of the following is true?
the products would be a salt and water
the products would be H2CO3 and PO4-3
the products would be CO3-2 and H2PO4-
the equilibrium lies to the right
- 19. Multiple Choice
If the Ka of an acid is 1 x 10-3, the the Kb of the conjugate base is:
1 x 10-14
1 x 10-3
1 x 10-11
1 x 10 -7
- 20. Multiple Choice
To distinguish between solutions of pH 2.4 and 4.5, which of the following indicators would be useful?
methyl orange
methyl violet
phenol red
litmus
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