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11 Dec 2019

1. The Ksp of Fe(OH)2 is 1.8x10^-15. What pH will a .50 M Fe2+ solution begin to show precipitation of Fe(OH)2?

2. What is the molar solubility of PbCrO4 in .10 M Na2S2O3? For PbCrO4 Ksp=2.0x10^-16, for Pb(S2O3)3^4- , Kf=2.2x10^6

3. What is the molar solubility of silver sulfate in .10 M of AgNO3? When Ksp= 1.2x10^-5

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Sixta Kovacek
Sixta KovacekLv2
13 Dec 2019

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Related questions

22) Given the following hydroxides and their solubility productconstants, which would be the most soluble in 1.0 L of water?

A) Magnesium hydroxide; Ksp=1.2x10-11

B) Iron(II) hydroxide;Ksp=1.6x10-14

C) Zinc hydroxide;Ksp=1.8x10-14

D) Copper (II) hydroxide; Ksp=2.2x10-20

E) Calcium Hydroxide; Ksp=8.0x10-6


23) Consider the equilibrium of AgCl(s) in water: AgCl(s) ??Ag+Cl- What is the effect of adding 6.5x10-3 M AgNO3?

a) The concentration will AgCl(s) will increase

b) The concentration will AgCl(s) will decrease

c) AgNO3 will precipitate

d) Silver dichloride precipitates

e) The AgNO3 has no effect on the solubility of AgCl


29) The Ksp of Mg(OH)2 is 3.6x10-4. At what pH will 0.2 M Mg+2solution begin to show precipitation? 1.4, 2.8, 10.7, 11.2,12.6


27) The solubility product for calcium phosphate is Ksp=1.36 x10-26. What is the molar solubility of calcium phosphate?1.3X10-26M, 1.5x10-7M, 2.6x10-6M, 4.6x10-6M,6.6x10-6M Show work, explain or no points

2a. The molar solubility of a saturated solution of Bil3 is 1.32x10^-5 mol L^-1. Calculate the solubility product constant.

2b. What is the concentration of acetate ion in a saturated silver(I) acetate solution prepared with 0.0750 M AgNo3? Ksp (AgC2H3O2)= 2.0x10^-3

2c. Equal volumes of 0.0150 M barium chloride and 0.0100 M sodium sulfate are mixed. What are the concentrations of the ions present in the final solution? Ksp= (BaSO4) 1.1x10^-10?

2d.What would the final Cu+ concentration in a solution that is originally 0.10 M in both Cu+ and Pb2+, that the minimum I- concentration is present to just precipitate both Cul and Pbl2? Ksp (Cul)= 5.1x 10^-12 and Ksp= 1.4x10^-8

A solution of NaOH is added dropwise to a solution that is 0.0850 M in Fe2+ and 5.33e-11 M in Ga3+.

The Ksp of Fe(OH)2 is 4.87e-17.
The Ksp of Ga(OH)3 is 7.28e-36.




(a) What concentration of OH- is necessary to begin precipitation? (Neglect volume changes.)

[OH-] = M.



(b) Which cation precipitates first?
Fe2+Ga3+




(c) What is the concentration of OH- when the second cation begins to precipitate?

[OH-] = M.

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