Name: 
 

Practice Test #7 - Solution Stoichiometry



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

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
 

 2. 

Which of the following statements are correct?

1.
All salts of carbonate ion are soluble in water.
2.
Most salts of chloride ion are soluble in water.
3.
All salts of hydroxide ion are soluble in water.
a.
1 only
b.
2 only
c.
3 only
d.
1 and 2
e.
1, 2, and 3
 

 3. 

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
 

 4. 

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
 

 5. 

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
 

 6. 

A precipitate will form when aqueous iron(II) bromide is added to ____.
a.
Na2SO4
b.
Cu(NO3)2
c.
KI
d.
Ba(OH)2
e.
NaCl
 

 7. 

A white solid is either Pb(NO3)2 or Zn(NO3)2. If an aqueous solution is prepared, which reagent will allow you to distinguish between the two compounds?
a.
KBr
b.
HNO3
c.
CH3CO2H
d.
NH4ClO4
e.
LiNO3
 

 8. 

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)
 

 9. 

Which of the following compounds is a weak acid?
a.
H3PO4
b.
HI
c.
HBr
d.
HClO4
e.
H2SO4
 

 10. 

Which of the following compounds is a weak base?
a.
LiOH
b.
KCl
c.
CH3CO2H
d.
Sr(OH)2
e.
NH3
 

 11. 

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-
 

 12. 

Sulfuric acid is the product of the reaction of ____ and H2O.
a.
H2S
b.
SO2
c.
SO32-
d.
SO42-
e.
SO3
 

 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. 

Write a balanced equation for the reaction of aqueous solutions of baking soda and acetic acid.
a.
NaHCO3(aq) + CH3CO2H(aq) NaCH3CO2(aq) + H2O( l) + CO2(g)
b.
2 NaHCO3(aq) + CH3CO2H(aq) 2 Na2CO3(aq) + CH4(aq) + 2H2O( l) + CO2(g)
c.
NaHCO3(aq) + CH3CO2H(aq) H2CO3(s) + NaCH3CO2(aq)
d.
NaHCO3(aq) + CH3CO2H(aq) NaOH(aq) + CH3CO2H(aq) + CO2(g)
e.
NaHCO3(aq) + CH3CO2H(aq) CH4(aq) + 2 CO2(g) + O2(g) + NaOH(aq)
 

 15. 

Which of the following chemical equations is an acid-base reaction?
a.
2 HCl(aq) + Zn(s) H2(g) + ZnCl2(aq)
b.
HCl(aq) + NH3(aq) NH4Cl(aq)
c.
HCl(aq) + AgNO3(aq) AgCl(s) + HNO3(aq)
d.
Ba(OH)2(aq) + Na2SO4(aq) BaSO4(s) + 2 NaOH(aq)
e.
2 NaOH(aq) + CuCl2(aq) Cu(OH)2(s) + 2 NaCl(aq)
 

 16. 

What is the mass of solute in 225 mL of 5.91 x 10-2 M KIO3?
a.
0.0133 g
b.
0.0562 g
c.
0.263 g
d.
1.51 g
e.
2.85 g
 

 17. 

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
 

 18. 

If 5.00 mL of 0.314 M KOH is diluted to exactly 125 mL with water, what is the concentration of the resulting solution?
a.
5.02 x 10-4 M
b.
1.26 x 10-2 M
c.
0.127 M
d.
0.281 M
e.
7.85 M
 

 19. 

Write a balanced equation for the reaction of aqueous solutions of potassium sulfide and hydrochloric acid.
a.
K2S(aq) + 2 HCl(aq) 2 KH(aq) + SCl2(g)
b.
K2S(aq) + HCl(aq) HS(g) + KCl(aq)
c.
K2S(aq) + 2 HCl(aq) H2S(g) + 2 KCl(aq)
d.
K2S(aq) + 2 HCl(aq) 2 K(s) + H2(g) + SCl2(g)
e.
K2S(aq) + 2 HCl(aq) S(s) + H2(g) + 2 KCl(aq)
 

 20. 

If 5.15 g FeCl3 is dissolved in enough water to make exactly 150.0 mL of solution, what is the molar concentration of chloride ion?
a.
0.103 M
b.
0.212 M
c.
0.578 M
d.
0.635 M
e.
16.7 M
 



 
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