Studied by 1 personHA
________ must be a weaker acid than H3O+ and, A- must be a STRONGER base than water.
strength of an acid
The ________ is measured by the extent to which it forms H3O+ in water.
strength of a base
The ________ is measured by the extent to which it forms hydroxide ions in water.
Weak acids
________ are only slightly ionized.
Ka values
________ are related to the strength of the acids.
HA(aq) + H2O(l) ⇌ H3O+(aq) + A
(aq)
Acid ionization constant (Ka)
the equilibrium constant for an acid
Base ionization constant (Kb)
the equilibrium constant for a base
HA must be a weaker acid than H3O+ and, A
must be a STRONGER base than water
Kb =
([HB+][OH-])/[B]
Ka =
([H+][A-])/[HA]
The larger the Ka,
the stronger the acid
The smaller the Ka,
the weaker the acid
The larger the Kb,
the stronger the base
The smaller the Kb,
the weaker the base
The stronger the acid,
the WEAKER its conjugate base.
Note
Flashcard