Solution: Of those below, which is most soluble in water?A. Ca₃(PO₄)₂ B. AgCl C. Na₂S D. PbI₂ E. CuS

Use the concept of solubility rules to determine which of the compounds is the most soluble in water

Solubility Rules:

•Soluble Ionic Compounds:

▪Group 1A ions (Li⁺, Na⁺, K⁺, etc.) and Ammoniumion (NH₄⁺) are soluble
 ▪ Nitrates (NO₃^-), Acetates (CH₃COO^- or C₂H₃O₂^-), and most Perchlorates (ClO₄^-) are soluble
 ▪ Cl^-, Br^-, and I^- are soluble except when paired with Ag⁺, Pb²⁺, Cu⁺, Hg₂²⁺
 ▪ Sulfates (SO₄^2-) are soluble except those of Ca²⁺, Sr²⁺, Ba²⁺, Ag⁺, and Pb²⁺