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Byju's Answer
Standard XII
Chemistry
Salt of Strong Acid and Weak Base
Calculate the...
Question
Calculate the pH of 0.005M
B
a
(
O
H
)
2
in aq. solution.
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Solution
Barium hydroxide is a strong base and completely dissociated.
B
a
(
O
H
)
2
→
B
a
2
+
+
2
O
H
−
So,
0.005
M
B
a
(
O
H
)
2
yields
0.005
×
2
=
0.01
moles of
O
H
−
So,
p
O
H
=
−
l
o
g
[
O
H
−
]
=
log
1
10
−
2
=
log
10
2
=
2
Now, as we know
p
H
+
p
O
H
=
14
p
H
=
14
−
2
=
12
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