1. How many milligrams of silver bromide can be dissolved in 20 litres of water?
2. The solubility of barium sulphate, BaSO4, is 2.4 x 10-4 g/100 mL of solution. Calculate the Kspof this solution.
3. Calculate the solubility product of a lead sulphate solution if 3.03 x 10-2 g of the product is dissolved in 1000 mL of water at 25°C.
4. If the solubility product of Pb(NO3)2 is 3.6 x 10-3 at 25°C, calculate the solubility of lead nitrate in g/L.Ksp = 3.6 x 10-3
5. Calculate the solubility product of a solution of silver chromate, Ag2CrO4, at 25°C, if 1.4 x 10-4 g are completely dissolved in 1000 mL of water.
6. Calculate the solubility of CaCrO4 if its Ksp is 1.6 x 10-9 at 25°C, in mg/L.Ksp = 1.6 x 10-9
7. Knowing that the concentration of Ag+ in a silver chromate solution is 1.5 x 10-3 M, calculate its solubility product at 25°C.
8. 7.8 g of calcium fluoride is dissolved in 100 L of water at 25°C. Will a precipitate be formed?
9. We dissolve 0.005 mole of strontium chromate in 1 L of solution at 25°C. Will a precipitate be formed?
10. 250 mL of 2 x 10-5 M AgNO3 is mixed with 250 mL 2 x 10-4 M NaI. What is the mass of the precipitate?
11. Experiments have shown that 0.003 g of SrCO3 will dissolve in 500 mL of water at 25°C. What is its Ksp?
12. A small quantity of solid silver iodate is dissolved in distilled water until equilibrium is attained. Determine the concentration of Ag+(aq) in the saturated solution.
13. Answer the following questions using the solutions Pb(NO3)2 2 x 10-3 M and Na2SO4 2 x 10-3M:
14. Give the chemical equation for this reaction.
15. Identify the ions that are present in each solution, and calculate their concentrations.
16. Identify the ions that are most susceptible to form a precipitate when the two solutions are mixed.
17. If 1 L of each solution are mixed, will a precipitate be formed? Why.
18. At 25°C, 1.7 x 10-5 mole of Cd(OH)2 can be dissolved in 1 L of water. Calculate its Ksp.
19. In 100 mL of distilled water, 1.0 g of TlCl is added. What will be the excess mass of solid? In other words, how much of the 1.0 g of TlCl doesn't dissolve? The Ksp of TlCl is 3.6 x 10-6
20. If 600 mL of a 0.04 M KCl solution is mixed with 50 mL of a 0.03 M Na2SO4 solution, will a precipitate be formed? Show all reasoning and/or calculations.
21. A clumsy chemist accidentally pours 100 mL of a 0.004 M Na2SO4 solution into a beaker containing 500 mL of 0.050 M CaCl2 solution. Will a precipitate be formed?