Acid Dissociation Constant Expression
Which of the following represents the acid dissociation constant (Ka) expression for the reaction HCl + H2O --> H3O+ + Cl-?
A
Ka = [Cl-][HCl]/[H3O+]
B
Ka = [H3O+][Cl-][HCl]
C
Ka = [H3O+][Cl-]/[HCl]
D
Ka = [H3O+][HCl]/[Cl-]