Solubility Rules

All salts of ammonium (NH₄⁺) and group IA are

always soluble

All chlorides (Cl^-) are ___ except

soluble ; except AgCl, (Hg₂)Cl₂, and PbCl₂ which are insoluble

All bromides (Br^-) are __ except

soluble ; except AgBr, (Hg₂)Br₂, HgBr₂, and PbBr₂ which are insoluble

All iodides (I^-) are __ except

soluble ; except AgI, (Hg₂)I₂, HgI₂, and PbI₂ which are insoluble

Chlorates (ClO₃^-), nitrates (NO₃^-), and acetates (CH₃COO^-) are

soluble

Sulfates (SO₄^-2) are __ except

soluble ; except Sr(SO₄), Ba(SO₄), (HG₂)(SO₄), Pb(SO₄), which are insoluble and Hg(SO₄), Ca(SO₄), & Ag₂(SO₄) which are slightly soluble

Bisulfates (HSO₄^-) are __ soluble than sulfates

more

Phosphate (PO₄^-3), chromates (CrO₄^-2), Silicates (SiO₃^-2), and carbonates (CO₃^-2) are __ except

insoluble ; except NH₄⁺ and group IA compounds and Mg(CrO₄)

All metallic oxides (O^-2) are __ except

insoluble ; except NH₄⁺ and Group IA compounds

All metallic hydroxides (OH^-) are __ except

insoluble ; except NH₄⁺ and Groups IA and Ca, Sr, and Ba hydroxide of group IIA

All sulfides (S^-2) are __ except

insoluble ; except NH₄⁺ and groups IA and IIA

Chromates and Fluorides are __ except

insoluble ; except NH₄⁺ and groups IA