Answers AB second review packet

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Acids and Bases:
Chapter 19 Review Activity
(Large Word Bank)
Multiple Choice 1-17
1. 2
2. 2
3. 1
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
Non-electrolyte
Weak electrolyte
Strong electrolyte
Dissociation
Ionization
Acid
Hydrogen ion
Hydronium ion
Ionization constant (Ka)
Operational definition
Conceptual definition
Bronsted-Lowry
Proton donor
Proton acceptor
Amphiprotic
Amphoteric
Don’t do
Don’t do
Don’t do
4. 2
5. 4
6. 2
7. 2
8. 2
9. 1
10. 4
11. 4
12. 1
13. 2
14. 3
15. 2
16. 4
17. 1
18.2 Review and Reinforcement
1. true
2. Strong
3. True 4. True 5. Weaker
6. Strong
7. Ka is a measure of the strength of an acid. The larger the Ka value (greater than one), the stronger
the acid.
8. Kb is a measure of the strength of a base. The larger the Kb value (greater than one), the stronger the
base
9. The reverse of neutralization. In hydrolysis, a salt and water, form the parent acid and parent base
10. Despite having the same concentrations, vinegar (acetic acid), does NOT ionize (throw H+ ions into
water) to the same EXTENT that HCl does, and therefore is considered a weaker acid.
11. True. To be considered a strong acid, you must ionize to a great extent or almost completely. The
more free-flowing ions, the better you conduct electricity, so the stronger the electrolyte
12. see answer to Question 19 from the first review packet
Answers AB #4 Hydrolysis
13. neutral
14. acidic
15. basic
16. can’t predict
17.
2. HNO3 = a Strong Acid (one of the top 5 strongest AND it has a very large Ka)
3. H3PO4 = a somewhat weak acid (one of the “stronger, weaker acids…nearer the top of the Ka ref
table)
4. K2CO3 = a salt (an ionic compound with a + ion other than H+ and a negative ion other than OH-.
It is basic salt because its parent base, KOH is a strong base, while its parent acid is carbonic
acid, a weak acid
5. Mg(OH)2 = a base from Group llA …lets call it strong.
6. LiNO3= a salt (same reason as in #4) BUT this is a NEUTRAL salt because its parent base is LiOH ( a
strong base) and its parenmt acid is HNO3, nitric acid, one of the top 5 strong acids
7. HC2H3O2= acetic acid or vinegar. It’s a weak acid …Ka is small …1.8 x 10^-5 at 25C.
8. NaC2H3O2= a basic salt because its parent base is NaOH, a strong base, and its parent acid is vinegar,
a weak acid
9. Al2(SO4)3= an acidic salt because its parent acid is sulfuric acid, H2SO4, a strong acid, and its parent
base is Al(OH)3, a weak base (Al is NOT a metal from Group l! or 11A)
10. ZnSO4= an acidic salt because its parent acid is sulfuric acid, H2SO4, a strong acid, and its parent
base is Zn(OH)3, a weak base (Zn is NOT a metal from Group l! or 11A)
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