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Ksp

Ksp. Multiple Choice EXAM Practice Questions. The [IO 3 - ] in a solution in equilibrium with Ce(IO 3 ) 3 (s) is 5.55 X 10 -3 M. Calculate the K sp for Ce(IO 3 ) 3 (s). (a) 3.16 X 10 -10 (b) 1.03 X 10 -5 (c) 2.56 X 10 -8 (d) 3.51 X 10 -11 (e) None of these. a.

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Ksp

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  1. Ksp Multiple Choice EXAM Practice Questions

  2. The [IO3-] in a solution in equilibrium with Ce(IO3)3(s) is 5.55 X 10-3M. Calculate the Ksp for Ce(IO3)3(s). (a) 3.16 X 10-10 (b) 1.03 X 10-5 (c) 2.56 X 10-8 (d) 3.51 X 10-11 (e) None of these a

  3. A solution is 1 X 10-4M in each of F-, S2-, and PO43-. What would be the order of precipitation as Pb2+ is added- Ksp(PbF2) = 4 X 10-8, Ksp (PbS) = 3 X 10-28, Ksp (Pb3(PO4) 2 = 1 X 10-42 • PbF2 before PbS before Pb3(PO4)2. • Pb,(PO4)2 before PbS before PbF:. • PbS before PbF2 before Pb3(PO4)2. • Pb3(PO4)2 before PbF2 before PbS. • PbS before Pb3(PO4)2 before PbF2. e

  4. The concentration of Ag+ in a saturated solution of Ag2C2O4(s) is 2.2 X 10-4M. The Kspof Ag2C2O4(s) is (a) 5.3 X 10-12 (b) 4.8 X 10-8 (c) 1.1 X 10-11 (d) 2.2 X 10-4 (e) None of these a

  5. The Kspof a metal sulfide, MS(.s), is 2.0 X 10-17 . The sulfide ion concentration ofa solution containing MS(s) at equilibrium is (a) 4.5 X 10-9M (b) 1.0 X 10-17M (c) 2.0 X 10-17M (d) 2.3 X 10-9M (e) None of these a

  6. How many moles of CaF2 will dissolve in 1.0 L of a 0.025 M NaF solution? (Kspfor CaF2 = 4.0 X 10-11) (a) 6.4 X 10-8 (b) 1.6 X 10-9 (c) 4.0 X 10-11 (d) 2.5 X 10-14 (e) None of these a

  7. 0.005 mol Na2SO4 is added to 500.0 mL of each of two solutions, one containing 1.5 X 10-3M BaCl2, the other 1.5 X 10-3M CaCl2. Given that Kspfor BaSO4 = 1.0 X 10-10 andKspfor CaSO4 = 6.1 X 10-5, • BaS04 would precipitate, but CaSO4 would not. • CaS04 would precipitate, but BaSO4 would not. • Both BaSO4 and CaSO4 would precipitate. • Neither BaSO4 nor CaSO4 would precipitate. • Not enough information is given to determine if precipitation would occur. a

  8. The solubility of Mg(OH)2 (MW = 58.3) is 8.34 X 10-5 g/10.0 mL at 25°C. The value of Kspfor Mg(OH)2 at 25°C is (a) 4.09 X 10-8 (b) 5.84 X 10-12 (c) 11.7X 10~12 (d) 16.7 X 10-12 (e) None of these c

  9. The solubility of CaF2(s) (Ksp= 4.0 X 1o-") in 1.0 L of a 1.0 X 10-2M solution of NaF is (a) 4.0 X 10~9 mol (b) 1.0 X 10-7 mol (c) 7.0 X 10-4 mol (d) 4.0 X 10-7 mol (e) None of these d

  10. Which of the following salts shows the smallest solubility in water? (a) Bi2S3 (Ksp = 1 X 10-73) (b) Ag2S (Ksp = 2 X 10-49) (c) MnS (Ksp = 2 X 10-13) (d) HgS (Ksp = 1 X 10-52) (e) Mg(OH)2(Ksp= I X 10-11) d

  11. In a solution prepared by adding excess Pbl2(s) (Ksp= 6.9 X 10-9) to water, the [I-] is (a) 1.5 X 10-3 mol/L (b) 2.4 X 10-3 mol/L (c) 1.2 X 10-3 mol/L (d) 8.4 X 10-5 mol/L (e) None of these b

  12. The Ksp of CuI(s) is 5.3 x 10-12. The number of moles of CuI(s) that will dissolve in 1.0 L of 1.0 x 10-2 M KI is • 2.3 x 10-6 • 5.3 x 10-12 • 5.3 x 10-8 • 5.3 x 10-10 • None of these d

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