Solubility Rules

Question 1

All salts containing NH4+ and alkali metal cations: soluble or insoluble?

Answer 1

Soluble

Question 2

All hydroxides: soluble or insoluble? What are the exceptions?

Answer 2

Insoluble

Exceptions: those formed with NH4+, alkali metals, and Ca2+, Sr2+, and Ba2+

Question 3

All salts containing sulfate, SO42-? What are the exceptions?

Answer 3

Soluble

Exceptions: those formed with Ca2+, Sr2+, Ba2+, and Pb2+

Question 4

All halide salts? What are the exceptions?

Answer 4

Soluble

Exceptions: those formed with F-, Ag2+, Pb2+, and Hg2+

Question 5

All carbonates, CO32-, phosphates, PO43-, sulfides S2-, and sulfites, SO32-? What are the exceptions?

Answer 5

Insoluble

Exceptions: those formed with NH4+ and alkali metals

Question 6

All salts containing nitrate, NO3-, and acetate, CH3COO-?

Answer 6

Soluble

Question 7

All metal oxides? What are the exceptions?

Answer 7

Insoluble

Exceptions: those formed with alkali metals, NH4+, and Ca2+, Sr2+, and Ba2+