Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
|
|
| 1. | Which
one of the following compounds is a nonelectrolyte when dissolved in water? a. | CH3CH2OH | b. | ZnBr2 | c. | LiCl | d. | Ca(NO3)2 | e. | KOH | | |
|
|
| 2. | Which
one of the following compounds is a weak electrolyte when dissolved in water? a. | sodium hydroxide
(NaOH) | b. | sodium acetate
(NaCH3CO2) | c. | acetic acid
(CH3CO2H) | d. | glucose
(C6H12O6) | e. | calcium chloride (CaCl2) | | |
|
|
| 3. | If
0.10 mole of each of the following compounds is dissolved to a volume of 1.0 L in water, which one
will have the highest concentration of dissolved ions? a. | HF | b. | NaOH | c. | MgSO4 | d. | Al(NO3)3 | e. | CaI2 | | |
|
|
| 4. | Which
of the following compounds will be soluble in water: LiOH, Mg(OH)2, Cu(OH)2,
and Fe(OH)3? a. | LiOH only | b. | LiOH and
Mg(OH)2 | c. | Cu(OH)2 and
Fe(OH)3 | d. | Mg(OH)2 and
Cu(OH)2 | e. | LiOH, Mg(OH)2, and
Fe(OH)3 | | |
|
|
| 5. | Which
of the following compounds will be soluble in water: KNO3,
Ca3(PO4)2, CuCl2, and
Fe2S3? a. | KNO3 and
Ca3(PO4)2 | b. | KNO3 and CuCl2 | c. | Ca3(PO4)2 and
Fe2S3 | d. | CuCl2 and
Fe2S3 | e. | KNO3, Ca3(PO4)2,
and Fe2S3 | | |
|
|
| 6. | A
precipitate will form when aqueous AgNO3 is added to an aqueous solution of
____. a. | KNO3 | b. | Cu(NO3)2 | c. | KI | d. | Ca(ClO4)2 | e. | NaNO3 | | |
|
|
| 7. | A
white solid is either NaI or NaNO3. If an aqueous solution of the solid is prepared, the
addition of which reagent will allow you to distinguish between the two compounds? a. | NaOH | b. | HCl | c. | K3PO4 | d. | NH4Br | e. | Pb(NO3)2 | | |
|
|
| 8. | What
is the net ionic equation for the reaction of aqueous lead(II) nitrate with aqueous sodium
bromide? a. | Pb(NO3)2(aq) + 2 NaBr(aq) ®
PbBr2(aq) + 2 NaNO3(s) | b. | Na+(aq) + NO3-(aq) ®
NaNO3(s) | c. | Pb2+(aq) + 2 Br-(aq) ®
PbBr2(s) | d. | Pb2+(aq) + 2 Na+(aq) ®
PbNa2(s) | e. | Pb(NO3)2(aq) + 2 NaBr(aq) ®
PbBr2(s) + 2 NaNO3(aq) | | |
|
|
| 9. | What
is the net ionic equation for the reaction of aqueous sodium carbonate with aqueous iron(III)
chloride? a. | 3
Na+(aq) + Fe3+(aq) ® Na3Fe(s) | b. | Na+(aq) + Cl-(aq) ® NaCl(s) | c. | 3
Na2CO3(aq) + 2 FeCl3(aq) ® 6 NaCl(aq) +
Fe2(CO3)3(aq) | d. | 2
Fe3+(aq) + 3 CO32-(aq) ®
Fe2(CO3)3(s) | e. | CO32-(aq) + Cl-(aq) ®
CO2(g) + Cl2O(s) | | |
|
|
| 10. | Which
of the following compounds is a weak acid? a. | H3PO4 | b. | HI | c. | HBr | d. | HClO4 | e. | H2SO4 | | |
|
|
| 11. | Which
of the following compounds is a weak base? a. | LiOH | b. | KCl | c. | CH3CO2H | d. | Sr(OH)2 | e. | NH3 | | |
|
|
| 12. | Which
of the following species are strong acids: HNO3, HBr,
H3PO4,CH3CO2H, and
HSO4-? a. | HNO3 and HBr | b. | HNO3
and H3PO4 | c. | HBr and HSO4- | d. | H3PO4, CH3CO2H, and
HSO4- | e. | HNO3, H3PO4, and
HSO4- | | |
|
|
| 13. | What
is the net ionic equation for the reaction of aqueous lithium hydroxide and aqueous nitric
acid? a. | H+(aq) + LiOH(aq) ® H2O(l) + Li+(aq) | b. | H+(aq) + OH-(aq) ® H2O(l) | c. | HNO3(aq) + LiOH(aq) ®
H2O(l) +
LiNO3(aq) | d. | Li+(aq) + NO3-(aq)
®
LiNO3(aq) | e. | LiOH(aq) + H2O(l) ®
H+(aq) + Li(OH)2(s) | | |
|
|
| 14. | What
are the spectator ions in the reaction between aqueous perchloric acid and aqueous potassium
hydroxide? a. | H+,
ClO4-, K+, and OH- | b. | H+
and OH- | c. | K+ and
ClO4- | d. | H+ and
ClO4- | e. | K+ and OH- | | |
|
|
| 15. | Write
a net ionic equation for the reaction of aqueous acetic acid and aqueous potassium
hydroxide. a. | CH3CO2H(aq) + KOH(aq) ® K+(aq) +
CH3CO2-(aq) + H2O(l) | b. | CH3CO2H(aq) + KOH(aq) ®
KCH3CO2(aq) + H2O(l) | c. | H+(aq) + OH-(aq) ®
H2O(l) | d. | CH3CO2H(aq) + OH-(aq)
®
CH3CO3H2-(aq) | e. | CH3CO2H(aq) + OH-(aq) ®
CH3CO2-(aq) + H2O(l) | | |
|
|
| 16. | Which
molecule in the reaction below undergoes oxidation?
2 C2H2(g) + 5 O2(g) ® 4
CO2(g) + 2 H2O(g)
a. | C2H2 | b. | O2 | c. | H2O | d. | CO2 | e. | C2H2 and
O2 | | |
|
|
| 17. | Which
species in the reaction below undergoes reduction?
Sn(s) + 2 H+(aq) ® Sn2+(aq) + H2(g)
a. | Sn | b. | H+ | c. | Sn2+ | d. | H2 | e. | No compound is
reduced. | | |
|
|
| 18. | What
is the oxidation number of each atom in sodium perbromate, NaBrO4? a. | Na = +1, Br =
-1, O = -2 | b. | Na = +1, Br = +1, O = -2 | c. | Na = +1, Br =
+7, O = -2 | d. | Na = -1, Br = -1, O = +2 | e. | Na = +1, Br =
-1, O = 0 | | |
|
|
| 19. | If
2.891 g MgCl2 is dissolved in enough water to make 500.0 mL of solution, what is the
molarity of the magnesium chloride solution? a. | 5.782 ´ 10-3 M | b. | 1.518
´ 10-2
M | c. | 6.073
´ 10-2
M | d. | 0.5505
M | e. | 5.782
M | | |
|
|
| 20. | How
many liters of 0.1107 M KCl(aq) contain 15.00 g of KCl? a. | 0.02227
L | b. | 0.5502
L | c. | 1.661
L | d. | 1.818
L | e. | 123.8
L | | |
|
|
| 21. | What
is the mass of solute in 225 mL of 5.91 ´ 10-2 M KIO3? a. | 0.0133
g | b. | 0.0562
g | c. | 0.263
g | d. | 1.51
g | e. | 2.85
g | | |
|
|
| 22. | A
25.00 mL sample of NaOH is titrated with 17.13 mL of 0.3150 M HCl. What is the concentration of the
NaOH solution? a. | 0.001360
M | b. | 0.1233
M | c. | 0.2158
M | d. | 0.4597
M | e. | 0.7356
M | | |
|
|
| 23. | If
0.3000 g of impure soda ash (Na2CO3) is titrated with 17.66 mL of 0.1187 M HCl,
what is the percent purity of the soda ash?
Na2CO3(aq) + 2 HCl(aq) ® 2 NaCl(aq) +
H2O(l) +
CO2(g) a. | 11.11% | b. | 22.22% | c. | 57.91% | d. | 37.03% | e. | 74.06% | | |
|
|
| 24. | What
volume of 0.300 M NaCl is required to precipitate all the Pb2+ ion from 25.0 mL of aqueous
0.440 M Pb(NO3)2?
Pb(NO3)2(aq) + 2 NaCl(aq) ®
PbCl2(s) + 2 NaNO3(aq) a. | 17.0 mL | b. | 36.7
mL | c. | 73.3
mL | d. | 84.4
mL | e. | 147
mL | | |
|