Question

Explain the formation of salts with two chemical reactions.

Answer 1

strong acid + strong base, e.g., HCl +
NaOH → NaCl + H2O
When strong acids and strong bases
react, the products are salt and
water. The acid and base neutralize
each other, so the solution will be
neutral (pH=7) and the ions that are
formed will not reaction with the
water.
strong acid + weak base, e.g., HCl +
NH 3 → NH 4 Cl
The reaction between a strong acid
and a weak base also produces a
salt, but water is not usually formed
because weak bases tend not to be
hydroxides. In this case, the water
solvent will react with the cation of
the salt to reform the weak base. For
example:
HCl (aq) + NH 3 (aq) ↔ NH 4 + (aq) +
Cl- while
NH 4- (aq) + H2 O ↔ NH 3 (aq) + H3 O
+ (aq)
weak acid + strong base, e.g., HClO +
NaOH → NaClO + H2O
When a weak acid reacts with a
strong base the resulting solution
will be basic. The salt will be
hydrolyzed to form the acid, together
with the formation of the hydroxide
ion from the hydrolyzed water
molecules.