Solubility Rules Chart
Solubility Rules for Ionic Compounds
Compounds Solubility Exceptions
Salts of alkali metals and ammonia Soluble Some lithium compounds
Nitrate salts and chlorate salts Soluble Few exceptions
Sulfate salts Soluble Compounds of Pb, Ag, Hg, Ba, Sr, and
Ca
Chloride salts Soluble Compounds of Ag, and some
compounds of Hg and Pb
Carbonates, phosphates, chromates,
sulfides, and hydroxides
Most are Insoluble Compounds of the alkali metals and
ammonia
Polyatomic Ion Chart
Type 1 Ions
ION NAME
Zn+2 Zinc
Ag+Silver
Type II Ions
ION NAME ION NAME
Fe+3 Iron (III) Sn+4 Tin (IV)
Fe+2 Iron (II) Sn+2 Tin (II)
Cu+2 Copper (II) Pb+4 Lead (IV)
Cu+Copper (I) Pb+2 Lead (II)
Co+3 Cobalt (III) Hg+2 Mercury (II)
Co+2 Cobalt (II) Hg2+2 Mercury (I)
Polyatomic Ions
ION NAME ION NAME
NH4+1 Ammonium CO3-2 Carbonate
NO2-1 Nitrite HCO3-1 Hydrogen carbonate
NO3-1 Nitrate ClO-1 Hypochlorite
SO3-2 Sulfite ClO2-1 Chlorite
SO4-2 Sulfate ClO3-1 Chlorate
HSO4-1 Hydrogen sulfate ClO4-1 Perchlorate
OH-1 Hydroxide C2H3O2-1 Acetate
CN-1 Cyanide MnO4-1 Permanganate
PO4-3 Phosphate Cr2O7-2 Dichromate
HPO4-2 Hydrogen phosphate CrO4-2 Chromate
H2PO4-1 Dihydrogen phosphate O2-2 Peroxide
