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Quiz On Solubility Product



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

 1. 

The Ksp of Bi2S3 is 1.6 x 10-72. What is the molar solubility of this compound in aqueous solution?
a.
1.6 x 10-72 M
c.
1.7 x 10-15 M
b.
4.4 x 10-15 M
d.
1.2 x 10-24 M
 

 2. 

Which is an INCORRECT match?
a.
BaSO4 = x-ray imaging
c.
Ca3(PO4)2 = bones and teeth
b.
CaCO3 = limestone
d.
all are correct matches
 

 3. 

The mineral fluorite is composed of CaF2. The molar solubility of calcium fluoride in water is 2.1 x 10-4 moles/L. What is the Ksp of CaF2?
a.
3.7 x 10-11
c.
4.6 x 10-8
b.
2.14 x 10-4
d.
9.8 x 10-12
 

 4. 

Gold chloride, AuCl, has a Ksp of 2.0 x 10-13. How many grams of gold are found in 500 mL of a saturated aqueous solution of AuCl?
a.
1.0 x 10-13 g
c.
2.2 x 10-7 g
b.
4.5 x 10-7 g
d.
4.4 x 10-5 g
 

 5. 

A 1.000 L solution is prepared in which Au+, Ag+, and Cu+ ions are present in solution as nitrates, all at a concentration of 0.0010 M. A solution of sodium chloride is slowly added. Which compound will begin to precipitate first? The Ksp of AuCl = 2.0 x 10-13; AgCl = 1.8 x 10-10; CuCl = 1.9 x 10-7.
a.
CuCl
b.
AgCl
c.
AuCl
d.
NaNO3
e.
NaCl
 

 6. 

A 1.000 L solution is prepared in which Au+, Ag+, and Cu+ ions are present in solution as nitrates, all at a concentration of 0.0010 M. A solution of sodium chloride is slowly added. The Ksp of AuCl = 2.0 x 10-13; AgCl = 1.8 x 10-10; CuCl = 1.9 x 10-7. At what concentration (M) of  [Cl-] ions will precipitation of the first salt begin?
a.
2.0 x 10-13 M
c.
4.5 x 10-7 M
b.
2.0 x 10-10 M
d.
1.9 x 10-4 M
 

 7. 

The Ksp of bismuth iodide, BiI3, is 8.1 x 10-19. How many grams of this compound can dissolve in a Liter of aqueous solution?
BiI3(s) « Bi3+ + 3 I-
a.
4.8 x 10-16 g
b.
8.1 x 10-19 g
c.
1.3 x 10-5 g
d.
3.0 x 10-20 g
e.
7.8 x 10-3 g
 

 8. 

The mineral sphalerite found in zinc mines near Lebanon, Tennessee is composed of ZnS. The molar solubility of ZnS in water is 3.3 x 10-11 moles/L. What is the Ksp of ZnS?
a.
2.14 x 10-4
c.
5.7 x 10-6
b.
1.1 x 10-21
d.
3.3 x 10-11
 

 9. 

Nickel carbonate, NiCO3, has a Ksp of 6.6 x 10-9. What is the molar solubility of nickel carbonate?
a.
3.9 x 10-3 mol/L
c.
6.6 x 10-9 mol/L
b.
4.35 x 10-17 mol/L
d.
8.1 x 10-5 mol/L
 

 10. 

A 1.000 L solution is prepared in which Ni2+, Ag+, and Mn2+ ions are present in solution, all at a concentration of 0.0010 M. A solution of sodium sulfide Na2S is slowly added. Which compound will begin to precipitate FIRST? The Ksp of NiS = 3.0 x 10-21; Ag2S = 1.0 x 10-49; MnS = 5.1 x 10-15.
a.
Ag2S
c.
MnS
b.
NiS
d.
Na2S
 

 11. 

In Problem #10, at what concentration [S2-] will precipitation of the first salt begin?
a.
0.001 M
c.
5.1 x 10-12 M
b.
3.0 x 10-18 M
d.
1.0 x 10-43 M
 



 
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