Solubility & Precipitation Questions
1. The molarity of CrO42- in a saturated Tl2CrO4 solution is 6.3 x10^-5 M. What is the Ksp of Tl2CrO4 ?
2. Calculate the molar solubility of lead(II) chloride in a 0.10 M calcium chloride solution. (Be sure you are starting with the correct formulas for these compounds!)
3. What is the pH as precipitation of nickel hydroxide just begins
from a
0.010 M nickel sulfate solution?
4. Will a precipitate form when 1.0 mL of 1.0 M potassium sulfate solution, 10.0 mL of 0.0030 M calcium chloride solution, and 100.0 mL of deionized water are mixed? Show all supporting calculations for your decision, including the identity of the possible precipitate(s).