12.2 Acidity and Basicity of Salts

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CATIONS ANIONS
Most Cations are Acidic
Ex) Fe2+, Zn2+, NH4+
Most Anions are Basic
Ex) OH-, F-, NO2-, SO42-
Exceptions (Negligible)
Li+, Na+,K+, Rb+, Cs+ (Group 1)
Mg2+, Ca2+, Sr2+, Ba2+ (Group 2)
Transition metals with +1 charge (ex. Ag+)
Exceptions (Negligible)
Cl-, Br-, I-, NO3-, ClO4-, ClO3-
(Conjugate bases of most strong acids)
HSO4- is Acidic
Acidic Salt acidic negligible
Basic Salt negligible basic
Neutral Salt negligible negligible

Identify each salt as Acidic, Basic, or Neutral

NaCl

BaF2

Al(ClO4)3

Mg(OH)2