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Byju's Answer
Standard VII
Physics
Electric Current
The emf of th...
Question
The emf of the cell
C
u
|
C
u
S
O
4
a
=
0.1
|
|
C
u
S
O
4
x
|
C
u
is
−
0.03
V
at
25
∘
C
. Calculate the activity of copper sulphate solution in the right hand side electrode.
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Solution
we have,
E
c
e
l
l
=
−
0.0591
2
l
o
g
0.1
x
-0.03 = -0.0295*
l
o
g
0.1
x
l
o
g
0.1
x
= 1.0169
l
o
g
x
= -2.0169
x
= 0.0096
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Similar questions
Q.
Calculate the electrode potential at a copper electrode dipped in a
0.1
M
solution of copper sulphate at
25
∘
C
. The standard electrode potential of
C
u
2
+
/
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u
system is
0.34
v
o
l
t
at
298
K
.
Q.
Assertion: Starting from aq. copper [II] sulphate solution, equations for the reactions at the cathode and anode during electrolysis of aq.
C
u
S
O
4
using active copper electrodes is;
at anode:
C
u
+
2
+
2
e
−
→
C
u
at cathode:
C
u
→
C
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+
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+
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e
−
Reason: Oxidation always take place at anode and reduction at cathode.
Q.
The reaction
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The solution of
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A current of
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