Two weak bases AOH and BOH having equal concentrations of 0.5 M are present in a solution. Calculate the ratio, [A+][B+] at equilibrium.
Dissociation constants for AOH and BOH are 1.1×10−8 and 1.7×10−9 respectively.
For AOH :
AOH(aq)⇌OH−(aq)+ A+(aq)
at t=0 C1 0 0
at t=teq C1−C1α1 (C1α1+C2α2) C1α1
For BOH :
BOH(aq)⇌OH−(aq)+ B+(aq)
at t=0 C2 0 0
at t=teq C2−C2α2 (C1α1+C2α2) C2α2
Dissociation constant for AOH Kb1 :