Honors Chemistry Solubility Rules

1. Any salt containing __ is soluble

Group 1A metal

2. Any salt containing __ is soluble

NH4+

3. Any salt containing __ is soluble

C2H3O2-, NO2-, NO3-, ClO3-, ClO4-

Insoluble chlorine compounds

AgCl, PbCl2, Hg2Cl2

Insoluble bromine compounds

AgBr, PbBr2, Hg2Br2

Insoluble iodine compounds

AgI, PbI2, Hg2I2

Insoluble sulfate compounds

CaSO4, BaSO4, PbSO4, SrSO4, Ag2SO4, Hg2SO4

Insoluble fluoride compounds

MgF2, CaF2, BaF2, SrF2, PbF2

Metal OH⁻ is soluble with

Group 1A, Ca, Sr, Ba, NH4

Metal O⁻² is soluble with

Group 1A, Ca, Sr, Ba, NH4

Metal CO₃⁻² is soluble with

Group 1A, NH4

Metal PO₄⁻³ and PO₃⁻³ are soluble with

Group 1A, NH4

Metal SO₃⁻² is soluble with

Group 1A, NH4

Metal S⁻² is soluble with

Group 1A, NH4

Metal CrO₄⁻² is soluble with

Group 1A, NH4

Metal C₂O₄⁻² is soluble with

Group 1A, NH4

H₂CO₃ →

H2O + CO2

NH₄OH →

H2O + NH3

H₂SO₃ →

H2O + SO2

HNO₃ →

H2O + NO2