A water is in equilibrium with Ca3(PO4)2(s). The solution contains other cations and anions, but no other weak acids or bases or sources of Ca and PO4, and has a pH of 8.6. Ignore complexes.

(a) What is the solubility (S) of Ca ion in this water? (optional) Tint: Develop equations that will allow you to make log C-pH plots for phosphate species.

(b) Will solubility of Ca ion increase, decrease, or remain constant if HCl is added to this water? Why?

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Given information pH 86 K sp 10810 23 a b The addition of HCl ... View the full answer