solubility rules

rule 1

salts of group 1 cations (with some exceptions for Li+) and NH4+ cation are soluble

rule 2

nitrates, acetates, perchlorates are soluble

rule 3

Salts of silver, lead, and mercury (I) are insoluble

rule 4

chlorides, bromides, and iodides are solubke

rule 5

carbonates, phosphates, sulfides, oxides, hydroxides are insoluble

rule 5/2

sulfides of group 2 cations and hydroxides of ca2+, sr2+, and ba2+ are slightly soluble

rule 6

sulfates are soluble except for those of calcium strontium and barium

strong acids

HCL
HBr
HI
HNO3
H2SO4
HCLO4

strong bases

LiOH
NaOH

KOH

Ca(OH)2

Sr(OH)2

Ba(OH)2

polyatomic ions

NH4 (+ 1) - ammonium
OH (-1) - hydroxide
NO2 (-1) - nitrite
CO3 (2-) - carbonate
SO4 (2-) - sulfate
SO3 (2-) - sulfite

PO4 (3-) - phosphate

CN (-) cyanide

MnO4 (-) - permanganate
Cr2O7 (2-) - dichromate
PO3 (3-) - phosphite

NH3 - ammonia
CIO3 (-) chlorate

CIO4(-) - perchlorate
CrO4 (2-) - chromate
C2H3O2 (-) - acetate