2.1 Estimate the solubility of calcium carbonate at 25°C in the presence of 0.02M CaCl2(aq) (6) 2.2 Will BaSO4 precipitate from a solution containing 2.5 x10 M Ba*2, barium ion, if enough soluble salt, Na2SO4, is added to make the solution 2.5 x104 M in SO42? (6)

(Q49) The molar solubility of bismuth iodide (Bil3) at 35°C is 6.54 x 10-5 M. What is the value of Ksp at this temperature? The balanced chemical equation for the dissociation of bismuth iodide is: Bil3 (s) Bi3+ (ag) + 3 |- (aq). O 7.71 x 10-19 4.28 x 10-9 O 1.83 x 10-17 O 5.49 x 10-17 4.94 x 10-16

At a particular temperature, the solubility of In₂(SO₄)₃ in water is 0.0060 M.   (a) What is the value of Ksp? (b) If solid In₂(SO₄)₃ is added to a solution that already contains 0.200 M Na₂SO₄, what will the new solubility of the solid be? (c) If solid In₂(SO₄)₃ is added to a solution that already contains 0.150 M In(NO₃)₃, what will the new solubility of the solid be?

7. The Ksp for copper(I) sulfide, Cu2S(s), is 2.5 x 10-48. Cu2S (s) 2 Cu'(aq) + S²(aq) (a) Write a solubility constant expression for Cu2S(s). [2] (b) Calculate its molar solubility in water at 25 degrees Celsius. [6]

(a) If the molar solubility of Nd₂(CO3)3 at 25 °C is 1.00e-07 mol/L, what is the Ksp at this temperature? Ksp = (b) It is found that 8.90e-06 g of Y₂(CO3)3 dissolves per 100 mL of aqueous solution at 25 °C. Calculate the solubility- product constant for Y₂(CO3)3. Ksp = (c) The Ksp of Ag₂C₂04 at 25 °C is 5.40e-12. What is the molar solubility of Ag2C₂04? solubility mol/L

(a) If the molar solubility of Tl2S at 25 oC is 5.31e-08 mol/L, what is the Ksp at this temperature?Ksp =  (b) It is found that 1.75e-06 g of Cu3(AsO4)2 dissolves per 100 mL of aqueous solution at 25 oC. Calculate the solubility-product constant for Cu3(AsO4)2.Ksp =  (c) The Ksp of BaCO3 at 25 oC is 2.58e-09. What is the molar solubility of BaCO3? solubility = ____ mol/L

a) What is the solubility of copper(II) iodate, Cu(IO;)2? Ksp. = 1.4 x 107 at 25 °C %3D b) Will the solubility of Cu(IO3)2 (s) increase, decrease or remain the same if some solid Cu(NO:)2 is added? (copper(II) nitrate is very soluble and completely dissolves) c) Aqueous copper(II) ions, Cu²* to the reaction: (a0), react with aqueous ammonia to form a complex according Cu2+, (a0+ 4NH3 (a) [Cu(NH3)4]* (aq) with a formation constant, Ke= 1.2 x 1013 How will the addition of aqueous NH3 effect the solubility of Cu(IO3)2 (s)? (increase, decrease or no effect)

(a) If the molar solubility of Cu3(PO4)2 at 25 oC is 1.67e-08 mol/L, what is the Ksp at this temperature?Ksp = _______(b) It is found that 1.75e-06 g of Cu3(AsO4)2 dissolves per 100 mL of aqueous solution at 25 oC. Calculate the solubility-product constant for Cu3(AsO4)2.Ksp = _______(c) The Ksp of ScF3 at 25 oC is 5.81e-24. What is the molar solubility of ScF3?solubility = ______  mol/L

After addition of HNO, to the mixture (1st addition), why did the precipitate dissolve? Consider the following equilibria: 2 Ag* (aq) + CO, (ag) = Ag2CO3(s) CO" (aq) +2H*(aq) = H2O(1) + CO2(9)

(Q58) How many times more soluble is scandium fluoride in pure water than it is in a solution that is 0.00837 M in potassium fluoride? SCF3 (s) Sc3* (aq) + 3 F (aq), Ksp = 5.81 x 10 24. (Hint: Calculate molar solubility in pure water and divide by the molar solubility in the presence of the common ion). O 6.87 x 1010 О 347 х 109 5.86 x 107 9.91 x 10-18 O 6.81 x 10-7