PP Presentation
CONJUGATE ACID-BASE PAIRS
A pair of compounds that differ in composition by one H+
HBr (aq) + NH3 (aq) Û NH4+ (aq) + Br- (aq)
ACID BASE conjugate ACID conjugate BASE
of NH3 of HBr
- H+
+ H+
ALL ACID-BASE REACTIONS involve
TWO CONJUGATE ACID-BASE PAIRS
Acid(1) + Base(2) Û Conj-Acid(2) + Conj-Base(1)
HCl + NH3 Û NH4+ + Cl-
H2O + NH3 Û NH4+ + OH-
CH3CO2H + H2O Û H3O+ + CH3CO2-