Solubility Rules

UK Che 105 Exam 2

Chlorates

Soluble, no exceptions

Acetates

Soluble, no exceptions

Sulfates

Soluble except for Ag, Hg, Pb, Ca, Sr, Ba

Halogens/Halides (F, Cl, Br, I + other element)

Soluble except for Ag, Mg, Pb

Nitrates/NH4

Soluble

Group 1 Alkali Metals

Soluble

Silver Salts

Insoluble except for AgNO3 and Ag(C2H3O2)

Hydroxide Salts

Group 1: Soluble, Transition Metals + Al: Insoluble

Sulfides of Transition Metals (element + S)

Insoluble

Carbonates

Insoluble

FeCO3

Insoluble due to carbonate rule

ClO4

Soluble due to chlorate rule

CaSO4

Insoluble: Sulfates are soluble but not with Ca

Table Salt

NaCl is soluble due to alkali metal rule

AgBr

Insoluble due to silver salt rule

Will Ag2S + 2NaNO3 form a precipitate?

Yes. Ag2S is insoluble due to sulfide rule and 2NaNO3 is soluble due to alkali metal and nitrate rule

Will KOH + Na2CrO4 form a precipitate?

No, KOH is soluble despite hydroxide rule because of alkali metal rule, and Na2CrO4 is soluble due to alkali metal rule