STRONG AND WEAK ACIDS AND BASES
Ions are present in aqueous solutions of acids and bases.
These ions result from the dissociation of the acid or the
base in water. The relative strength of an acid or base
depends upon the _____ to which it dissociates in solution.
Strong acids and strong bases dissociate 100% in an
aqueous solution.
Eg. HCl(aq)  _____(aq) + _____(aq)
KOH(aq)  ______(aq) + ______(aq)
Strong Acids – HCl, HI, HBr, HNO3, HClO4, H2SO4
Strong Bases – group I and II hydroxides (Except Be2+)
Weak acids and bases dissociate very slightly in a water
solution. Thus, only a small percentage of the acid or base
molecules break apart into ions. The products reform the
original reactants and form an equilibrium. This equilibrium
occurs when the forward reaction equals the backward
reaction. Equilibrium reactions are reversible.
Eg. CH3COOH(aq)  ___(aq) + ___________(aq)
HF(aq)  ______(aq) + _______(aq)