Solubility Rules - Chemistry - Chemistry - 2011-09-22

Soluble Compounds

1) Compounds containing alkali metal ions (Li+, Na+, K+, Rb+, Cs+) and the ammonium ion (NH4+)
2) Nitrates (NO3-), bicarbonates (HCO3-) and chlorates (ClO3-)
3) Halides (Cl-, Br-, I-)

4) Sulfates (SO4-)

Insoluble Exceptions

Halides of Ag+, Hg22+, and Pb+

Sulfates of Ag+, Ca+, Sr2+, Ba2+, Hg22+ and Pb2+

Insoluble Compounds

1) Carbonates (CO32-), phosphates (PO43-), chromates (CrO42-) and sulfides (S2-).

2) Hydroxides (OH-)

Soluble Exceptions

Compounds containing alkali metal ions and the ammonium ion NH4+

Compounds containing alkali metal ions and the Ba2+ ion.



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