E_-_102_F11_Notes

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Unformatted text preview: deposited
at
the
cathode.

 
 
 Question
E2
 A
galvanic
cell
consists
of
a
cadmium
cathode
immersed
in
a
CdSO4
solution
and
a
zinc
 anode
immersed
in
a
ZnSO4
solution.

A
salt
bridge
connects
the
two
half‐cells.

A
current
 of
1.45
A
is
observed
to
flow
for
a
period
of
2.6
hours.

How
many
mols
of
electrons
have
 passed
through
the
circuit
during
this
time?


 
 Standard
Electrode
Potentials
 
 
 H2
(g)
→
2
H+
(aq)
+
2
e‐
 
 a=1
is
activity
of
1
if
[H+]
=
1M
 
 
 
 
 
 
 
 
 Petrucci
et
al.,
Figure
20.5
 
 
 Question
E3
 A
galvanic
cell
is
constructed
that
has
a
zinc
anode
immersed
in
a
Zn(NO3)2
solution
and
a
 platinum
cathode
immersed
in
a
NaCl
solution
equilibrated
with
Cl2
(g)
at
1
atm
and
25°C.

 A
salt
bridge
connects
the
two
cells.

A
current
of
0.80A
is
observed
to
flow
for
a
period
of
 25
minutes.

Calculate
the
volume
of
gaseous
chlorine
generate...
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This note was uploaded on 12/28/2011 for the course CHE 102 taught by Professor Simon during the Winter '08 term at Waterloo.

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