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


Of those below, which is most soluble in water?

A. Ca3(PO4)2 

B. AgCl 

C. Na2

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 (SO42-) are soluble except those of Ca2+, Sr2+, Ba2+, Ag+, and Pb2+

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