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Byju's Answer
Standard XII
Chemistry
Properties of Water
NaOH is a str...
Question
N
a
O
H
is a strong base. What will be the
p
H
of
5.0
×
10
−
2
M
N
a
O
H
solution?
(
log
2
=
0.3
)
A
14.00
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B
13.70
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C
13.00
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D
12.70
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Solution
The correct option is
C
12.70
Given that,
5.0
×
10
−
2
M
N
a
O
H
≡
[
O
H
−
]
=
5
×
10
−
2
M
[
H
+
]
[
O
H
−
]
=
1
×
10
−
14
[
H
+
]
×
5
×
10
−
2
=
1
×
10
−
14
[
H
+
]
=
1
×
10
−
14
5
×
10
−
2
=
2
×
10
−
13
p
H
=
−
log
[
H
+
]
=
−
log
(
2
×
10
−
13
)
=
12.69
≈
12.70
.
Option D is correct.
Suggest Corrections
0
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