Chem 1211 Solubility Rules

Lithium (Li+)

soluble (aq), no exception

Sodium (Na+)

soluble (aq), no exception

Potassium (K+)

soluble (aq), no exception

Nitrate (NO3-)

soluble (aq), no exception

Acetate (C3H3O2-)

soluble (aq), no exception

Chloride (Cl-)

soluble (aq), exceptions, insoluble when paired with: Ag+ (silver) Hg2²+(mercury), or Pb²+ (lead)

Bromide (Br-)

soluble (aq), exceptions, insoluble when paired with: Ag+ (silver) Hg2²+(mercury), or Pb²+ (lead)

Iodide (I-)

soluble (aq), exceptions, insoluble when paired with: Ag+ (silver) Hg2²+(mercury), or Pb²+ (lead)

Sulfate (SO4²-)

soluble (aq) exceptions, insoluble when paired with: Strontium (Sr²+), Barium (Ba²+), Lead (Pb²+), Silver (Ag+), or Calcium (Ca²+)

Hydroxide (OH-)

insoluble, exceptions: when paired with Litium (Li+), Sodium(Na+), Potassium(K+), Ammonium or (NH4+) the resulting compounds are soluble. when paired with Calcium (Ca²+), Strontium (Sr²+), or Barium (Ba²+), the resulting compound is slightly soluble.

Sulfuide (S²-)

insoluble, exceptions: when paired with Litium (Li+), Sodium(Na+), Potassium(K+), Ammonium or (NH4+) the resulting compounds are soluble. When paired with Calcium (Ca²+), Strontium (Sr²+), or Barium (Ba²+), the resulting compound is sol

Carbonate (CO3²-)

Insoluble, exception: when paired with Lithium (Li+), Sodium (Na+), Potassium (K+), or Ammonium (NH4+), the resulting coumpounds are soluble.

Phosphate (PO4³-)

Insoluble, exception: when paired with Lithium (Li+), Sodium (Na+), Potassium (K+), or Ammonium (NH4+), the resulting coumpounds are soluble.

Ammonium (NH4+)

soluble, no exception