1) Dissolve Ca(OH)2(s) into a 100 mL solution containing 2.00g of dissolved CaCl2. The satureated Ca(OH)2 solution has an equilibrium pH of 11.68. Determine the molar solubility and the Ksp for Ca(OH)2 from this single pH measurement.
2) You are tasked with preparing 100 mL of a pH=12.00 buffer. Each buffer component must have a concentration of at least 0.10 M.
The Following stock reagents are available:
1.0M HCl
1.0M NaOH
Solid NaH2PO4*(H2O)2