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Potentials of Hydrogen Power

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Potentials of Hydrogen Power ( potentials-hydrogen-power )

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Energetic
Electrolysis
 Activity
Guide
 Frequently Asked Questions • • • • • • What
do
I
do
if
only
a
few
bubbles
are
being
produced
during
electrolysis?
 Try
adding
more
sodium
sulfate
or
salt
to
the
water
solution,
or
try
bringing
the
 electrodes
closer
to
each
other
(remembering
not
to
let
them
touch!).
 
 Isn’t
hydrogen
gas
dangerous?

I’ve
heard
it
is
very
combustible.
 Although
in
large
amounts
hydrogen
gas
is
very
explosive,
the
amount
we
are
 producing
today
does
not
risk
explosion.

The
question
of
combustibility,
however,
 is
a
concern
in
the
use
of
hydrogen
power
as
a
source
of
large‐scale
energy.
 
 Can
I
use
a
different
sized
battery?
 For
safety
concerns
we
recommend
that
only
a
6
volt
battery
be
used.

These
 batteries
can
be
found
at
any
general
hardware
store.

 
 Will
electrolysis
work
without
added
salt
in
the
water?


 Sometimes.

If
you
live
in
a
place
with
high
amounts
of
iron
in
your
tap
water,
the
 iron
may
act
as
a
good
enough
conductor
to
produce
gas.

 
 What
is
the
difference
between
using
sodium
chloride
(table
salt)
and
sodium
sulfate?
 Both
salt
and
sodium
sulfate
serve
as
a
conductor
of
electricity,
which
increases
the
 amount
of
hydrogen
gas
produced
by
the
electrolysis.

When
salt
is
used,
it
 produces
chlorine
gas,
instead
of
oxygen
on
the
anode
side
of
the
current.

Using
a
 sodium
sulfate
and
water
solution
will
cause
oxygen
gas
to
form.


 (*Note:

The
amount
of
chlorine
gas
that
is
produced
when
using
a
salt
solution
is
 very
small
and
is
not
a
concern.)
 
 What
is
the
difference
between
a
fuel
cell
and
a
battery?
 Fuel
cells
consume
power
from
an
external
source
that
needs
to
be
replenished,
 while
batteries
store
electrical
energy
chemically.

In
the
case
of
a
hydrogen
fuel
 cell,
the
external
source
is
hydrogen
as
fuel,
and
oxygen
is
an
oxidant
during
 combustion.
 
 
 
 
 
 Credits This
project
is
made
possible
by
a
grant
from
the

 U.S.
Institute
of
Museum
and
Library
Services
 Copyright
2010,
Sciencenter,
Ithaca,
NY.
 
 
 
 Sciencenter, Ithaca, NY Page 6 www.sciencenter.org

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