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- 1. Multiple Choice
The solubility of CuI is 2 × 10–6 molar. What is the solubility product constant, Ksp, for CuI?
1.4 × 10–3
2 × 10–6
4 × 10–12
2 × 10–12
- 2. Multiple Choice
Ksp is the symbol for the
solubility of a solid.
solubility product constant.
acid ionization constant.
base ionization constant.
- 3. Multiple Choice
What is the Ksp expression for the equation below?
AgBr(s) ⇆ Ag+ (aq) + Br- (aq)
Ksp = [AgBr] / [Ag]
Ksp = 1/ [Br-] [Ag+]
Ksp = [Ag+] [Br-]
Ksp = [Br-] [Ag+] / [AgBr]
- 4. Multiple Choice
The solubility equation for silver bromide is
AgBr (s) ⇆ Ag+(aq) + Br- (aq)
and the Ksp is 5.0 x 10–13. What is the solubility of silver bromide?
a. 7.1 x10–7 mol/L
b. 3.1 x 10–7
c. 2.5 x 10–2
d. 1.2 x 10–22
- 5. Multiple Choice
Which of the following salts is least soluble?
Ag2CO3 Ksp = 8.4 x 10^-12
Ag2CrO4 Ksp = 1.1 x 10^-12
AgI Ksp = 1.5 x 10^-16
AgBr Ksp = 5.4 x 10^-13
- 6. Multiple Choice
When you calculate the Ksp of calcium fluoride, CaF2, if the concentration of the F- ion is 4.2 x 10^-4 M, then the concentration of the Ca2+ ion is
a. 2.1 x 10^-4 M.
b. 4.2 x 10^-2
c. 3.2 x 10^-4
d. 8.4 x 10^-4
- 7. Multiple Choice
In which of the following reactions, described by the equations below, will an increase in pressure have no effect on the equilibrium of the system?
a. 2NO2(g) ⇆ N2O4(g)
b. 2NOCl (g) ⇆ 2NO(g) + Cl2(g)
c. H2O(g) + CO(g) ⇆ H2(g) + CO2(g)
N2(g) + 3H2(g) ⇆ 2NH3(g)
- 8. Multiple Choice
Solutions of carbolic acid, commonly known as phenol (HC6H5O(aq)), are widely used as disinfectants. One such solution has a concentration of 6.44 x 10-2 mol/L and a pH of 5.60. Carbolic acid ionizes in water according to the equation
HC6H5O(aq) + H2O(l) ⇌ C6H5O-(aq) + H3O+(aq)
- 9. Multiple ChoiceWhich of the following shows the correct dissolution reaction for BaCl2?Ba 2+(aq) + Cl2-(aq) -> BaCl2(s)BaCl2(aq) -> Ba 2+(aq) + 2Cl-(aq)BaCl2(s) -> Ba 2+(aq) + 2Cl-(aq)Ba 2+(aq) + 2Cl-(aq) -> BaCl2(s)
- 10. Multiple Choice
What is the Ksp expression for Cu3(PO4)2?
Ksp = [Cu+2]3[PO4-3]2
Ksp = [Cu+2]2[PO4-3]3
Ksp = [Cu+2][PO4-3]
Ksp = [Cu+2]3[PO4-3]
- 11. Multiple ChoiceWhen the chemical reaction A + B ↔ C+ D is at equilibrium,both the forward and reverse reactions have stopped.the sum of the concentrations of A and B equals the sum of the concentrations of C and D.all four concentrations are equal.neither the forward nor the reverse reactions have stopped.
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