answer please

PART 1: hardness, activity and solubility product (80 marks) Toowoomba city is pumping water from several dams in the region: Cooby dam, Cressbrook dam and Perseverance dam. A water analysis report reveals that the water contains 0.7 mg/L CO2 and the pH of the water is 8.3. Consider the ions as described in the table below. Ion Ca2+ Fe3+ Mg2+ Na+ CH HCO3 K+ Mn2+ SO42- CO32- Table 1: water analysis mg/L 19.6 mg/L 0.033 mg/L 13.5 mg/L 32.1 mg/L 58 mg/L 69 mg/L as CaCO3 4.5 mg/L 0.015 mg/L 1 mg/L 8 mg/L as CaCO3 4) Search the literature for the solubility product constant for calcium carbonate (CaCO3) and estimate the minimum solubility of calcium in solution to satisfy the solubility product for calcium carbonate (CaCO3) at 25C. (20 marks) PART 1: hardness, activity and solubility product (80 marks) Toowoomba city is pumping water from several dams in the region: Cooby dam, Cressbrook dam and Perseverance dam. A water analysis report reveals that the water contains 0.7 mg/L CO2 and the pH of the water is 8.3. Consider the ions as described in the table below. Ion Ca2+ Fe3+ Mg2+ Na+ CH HCO3 K+ Mn2+ SO42- CO32- Table 1: water analysis mg/L 19.6 mg/L 0.033 mg/L 13.5 mg/L 32.1 mg/L 58 mg/L 69 mg/L as CaCO3 4.5 mg/L 0.015 mg/L 1 mg/L 8 mg/L as CaCO3 4) Search the literature for the solubility product constant for calcium carbonate (CaCO3) and estimate the minimum solubility of calcium in solution to satisfy the solubility product for calcium carbonate (CaCO3) at 25C. (20 marks)