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Inorganic Chemistry
Period 3
variable oxidation states
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Created by
Amima Wali
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Cards (8)
Transition metals
have multiple
stable
ions in different
oxidation
states
Vanadium has
four
main
oxidation states
, all of which can be easily
prepared.
Each vanadium ion is a
different colour
Different ions of
vanadium
can be prepared by successive
reduction
with
zinc
in
acid
solution.
If the
redox potential
of a
metal
ion is a
high
value:
The ion is more
easily reduced
The ion is less stable
the electrode potential is high
Vanadium
species in oxidation states
IV
,
III
and II are formed by the reduction of
vanadate
(
V
) ions by
zinc
in
acidic solution.
The
redox potential
for a transition metal ion changing from a
higher
to a
lower
oxidation state is influenced by
pH
and by the
ligand.
Redox potential
refers to how
easy
it is to
reduce
a
metal
The redox potential and standard electrode potential will differ if:
1)The solution's
ligands
are different
2)The solution's
pH
is different
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