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Byju's Answer
Standard XII
Chemistry
EMF
What is pH of...
Question
What is pH of the half-cell
P
t
|
H
2
(
g
)
|
H
+
if
E
∘
H
+
|
H
2
=
−
0.0295
V
Open in App
Solution
E
H
+
|
H
2
=
E
∘
H
+
|
H
2
−
0.0591
1
log
1
[
H
+
]
=
−
0.0295
=
0
−
0.0591
1
×
pH
pH
=
0.0295
0.0591
=
1
2
=
0.5
V
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0
Similar questions
Q.
What is
p
H
of the half cell
H
+
(
aq
)
|
H
2
(
g
,
1
atm
)
|
P
t
(
s
)
if
E
H
+
(
aq
)
|
H
2
(
g
)
=
−
0.25
V
?
Q.
For the half cell reaction at 298 K,
H
+
(
a
q
)
+
e
−
→
1
2
H
2
(
g
)
(1 atm
)
Q.
P
t
(
H
2
)
|
H
+
(
p
H
=
2
)
|
H
+
(
p
H
=
3
)
|
P
t
(
H
2
)
1 atm 1 atm
The cell reaction for the given cell is:
Q.
I
2
(
s
)
|
I
−
(
0.1
M
)
half cell is connected to a
H
+
(
a
q
)
H
2
(
1
bar
)
|
P
t
half cell and e.m.f is found to be 0.7714V. If
E
∘
I
2
|
I
−
=
0.535
V
, find the pH of
H
+
|
H
2
half-cell
Q.
I
2
(
S
)
|
I
(
0.1
M
)
half cell is connected to
H
+
(
a
q
)
|
H
2
(
1
a
t
m
)
|
P
t
half cell and its half cell potential is found to be 0.7714 V. If
E
o
I
2
/
I
=
0.535
V
, the pH of
H
+
/
H
2
half cell will be:
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