Solubility Rules

Question 1

Carbonates (CO32- )

Answer 1

Insoluble Except Group 1 metals, ammonium, dilute acids

Question 2

Oxides (O2-)

Answer 2

Insoluble Except Group 1 metals, ammonium, dilute acids

Question 3

Phosphates (PO43- )

Answer 3

Insoluble Except Group 1 metals, ammonium, dilute acids

Question 4

Sulfides (S2-)

Answer 4

Insoluble Except Group 1 metals, Ca2+, Sr2+, Ba2+, ammonium

Question 5

Sulfites (SO32-)

Answer 5

Insoluble Except Group 1 metals, ammonium, dilute acids

Question 6

Hydroxides (OH- )

Answer 6

Insoluble Except Group 1 metals, Ca2+, Sr2+, Ba2+, dilute acids

Question 7

Chromates (CrO42- )

Answer 7

Insoluble Except Group 1 metals, Ca2+, Mg2+,ammonium,

Question 8

Group 1 metals (Li+, Na+, K+, Rb+, Cs+)

Answer 8

None
Nitrates (NO3- ) None
Chlorates (ClO3- ) None
Perchlorates (ClO4- ) None
Hydrogen carbonate (HCO3- ) None
Acetates (C2H3O2- ) (silver acetate only slightly soluble)
Ammonium (NH4+ ) (ammonium hydroxide breaks up)
Halides (F-, Cl-, Br-, I-) (Ag+, Pb2+, Hg22+)
Sulfates (SO42- ) (Ag+, Pb+2, Hg22+, Ca2+, Ba2+, Sr2+)