CP Stone Chem Unit 5 Solubility Rules

Solubility Rules:

• If the cation for a reactant or a product is a GROUP 1 cation or ammonium, the salt is VERY soluble AND NO precipitate will be observed. (amonium = acception)

• If the anion for a reactant or a product is NITRATE, CHLORITE, CHLORATE, PERCHLORATE, or ACETATE, the salt is also largely soluble and NO precipitate will be observed.(acetate)

• If the anion for a reaction or a product is CHLORIDE or BROMIDE, or IODIDE, then the salt is LARGELY soluble and no precipitate will be observed UNLESS the cation is Silver (I), Mercury (I). and lead (II) _ALL STRONG)

• If the anion for a reactant or a product is FLUORIDE, then the salt is largely soluble and no precipitate will be observed UNLESS the cation is one of the group 2 cations (other than Beryllium), and unless it is LEAD II SULFATE = STRONG

• If the anion for a reactant or a product is SULFATE, then the salt is largely soluble and no precipitate will be observed UNLESS the cation is one of the group 2 cations (AND LEAD II) other than Beryllium or Magnesium.

• The hydroxides of the GROUP 2 CATIONS of STRONTIUM, BARIUM, and RADIUM are soluble