From the given problem statement,
Which conjugate base ( ) has the smallest value has to be explained.
Which anion is the strongest base has to be explained.
Acid ionization constant :
The equilibrium expression for the reaction is given below.
Where is acid ionization constant, is concentration of hydronium ion, is concentration of acid anion, is concentration of the acid
Base ionization constant
The equilibrium expression for the ionization of weak base will be,
is base ionization constant,
is concentration of hydroxide ion
is concentration of conjugate acid
is concentration of the base
Relationship between and
is autoionization of water.
In general, there is a reciprocal relationship between the strength of an acid or base and the strength of its conjugate.
Which conjugate base ( ) has the smallest value
Which anion is the strongest base