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Byju's Answer
Standard IX
Chemistry
pH of a Solution
2g of NaOH ...
Question
2
g
of
N
a
O
H
are dissolved in water to make
1
l
i
t
r
e
solution. What is pH of solution?
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Solution
Number of moles of
N
a
O
H
=
2
40
=
0.05
Concentration of
N
a
O
H
(Molarity)
=
0.05
1
=
0.05
m
o
l
a
r
Concentration of
O
H
−
ions
=
0.05
M
p
O
H
=
−
l
o
g
0.05
=
1.30
p
H
+
p
O
H
=
14
p
H
=
12.7
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