Solubility Rules

Question 1

Compounds containing alkali metal ions (Li+, Na+, K+, Rb+, Cs+) and the ammonium ion

Answer 1

Soluble

Question 2

Nitrates ({NO3}+), acetates ({CH3COO}-), bicarbonates ({HCO3}-), chlorates ({ClO3}-), and perchlorates ({ClO4}-)

Answer 2

Soluble

Question 3

Halides (Cl-, Br-, I-)

Answer 3

Soluble except when halides of Ag+, {Hg2}2+, and Pb2+

Question 4

Sulfates ({SO4}2-)

Answer 4

Soluble except when sulfates of Ag+, Ca2+, Sr2+, Ba2+, {Hg2}2+, and Pb2+

Question 5

Carbonates ({CO3}2-), phosphates ({PO4}3-), chromates ({CrO4}2-}), and sulfides (S2-)

Answer 5

Insoluble except compounds containing alkali metal ions and the ammonium ion