Question 1
Find the concentration of calcium ions in a solution made by adding 3.50 g of calcium fluoride to 750. mL of 0.125 M NaF. [For CaF2, Ksp = 3.95 × 10–11.]Question 2
Find the concentration of Pb2+ ions in a solution made by adding 5.00 g of lead(II) iodide to 500. mL of 0.150 M KI. [For PbI2, Ksp = 1.39 × 10–8.]Answer 1
2.53 × 10–9 MAnswer 2
6.18 × 10–7 M