Temperature change is important. Exact time
is not important.
Temperature will drift toward ambient before
and after reaction
Transition will be faster if NaOH is added
rapidly and well stirred.
(That
is you will have a more nearly vertical temp. rise) HCl (or acetic acid)
and NaOH mixed,
reaction begins
Reaction is completed,
heat released, begin
slow cooling to ambient
The Heat of
Neutralization Experiments