Last Updated：2025/12/30
Sentence
The
case
of
hydronium
ions
(H₃O⁺)
is
an
example
of
this.
In
the
gase
phase,
hydronium
is
a
weak
acid.
The
data
in
Table
3.10
indicates
that
bare
hydronium
ions
have
a
higher
electron
affinity
than
most
metal
surfaces,
so
a
bare
hydronium
ion
should
be
neutralized
when
it
absorbs
on
a
bare
metal
surface.
However,
a
hydrated
hydronium
ion
is
a
stronger
acid.
Quizzes for review
The case of hydronium ions (H₃O⁺) is an example of this. In the gase phase, hydronium is a weak acid. The data in Table 3.10 indicates that bare hydronium ions have a higher electron affinity than most metal surfaces, so a bare hydronium ion should be neutralized when it absorbs on a bare metal surface. However, a hydrated hydronium ion is a stronger acid.
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