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solid ba no3 2 is gradually dissolved in a 1 0 10
Question:
Solid
B
a
(
N
O
3
)
2
is gradually dissolved in a
1.0
×
10
−
4
M
N
a
2
C
O
3
solution. At which concentration of
B
a
2
+
, precipitate of
B
a
C
O
3
begins to form?
(
K
s
p
for
B
a
C
O
3
=
5.1
×
10
−
9
)
MHT CET
Updated On:
Jul 19, 2024
(A)
5.1
×
10
−
5
M
(B)
7.1
×
10
−
5
M
(C)
4.1
×
10
−
5
M
(D)
8.1
×
10
−
7
M
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Verified By Collegedunia
The Correct Option is
A
Solution and Explanation
Explanation:
Given that: Concentration of
N
a
2
C
O
3
=
1.0
×
10
−
4
M
∴
[
C
O
3
−
]
=
1.0
×
10
−
4
M
i.e.,
s
=
1.0
×
10
−
4
M
At equilibrium:
[
B
a
+
+
]
[
C
O
3
−
−
]
=
K
s
p
of
B
a
C
O
3
[
B
a
+
+
]
=
K
s
p
[
C
O
3
−
−
]
=
5.1
×
10
−
9
1.0
×
10
−
4
=
5.1
×
10
−
5
M
Hence, the correct option is (A).
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