Soludility Rules

Li+

Soluble, with no exceptions. (Li)

Na+

Soluble with no exceptions. (Na)

K+

Soluble, with no exceptions. (K)

NH4+

Soluble, with no exceptions. (NH4)

NO3-

Soluble with no exceptions. (NO3)

C2H3O2

Soluble, with no exceptions. (C2H3O2)

Cl-

Generally soluble, except with Ag+, Pb2+, and Hg2 2+. (Cl)

Br-

Generally soluble, except with Ag+, Pb2+, and Hg2 2+. (Br)

I-

Generally soluble, except with Ag+, Pb2+, and Hg2 2+. (I)

SO4 2-

Generally soluble, except with Ba2+, Sr2+, Pb2+, Ag+, and Ca2+. (SO4)

OH-

Always Insoluble or Slightly soluble

S2-

Generally insoluble, except with alkali metals, NH4+, Ca2+, Sr2+, and Ba2+. (S2)

CO3 2-

Generally insoluble, except with alkali metals and NH4+. (CO3)

PO4 3-

Generally insoluble, except with alkali metals and NH4+. (PO4)