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Standard XII
Chemistry
Introduction to Alkanes
H2CO3 + NaOH ...
Question
H2CO3 + NaOH = NaHCO3+ H20 Equivalent weight of H2CO3 in the above reaction is
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Similar questions
Q.
H
2
C
O
3
+
N
a
O
H
→
N
a
H
C
O
3
+
H
2
O
Equivalent weight of
H
2
C
O
3
in the above reaction is (Molar mass of
H
2
C
O
3
is
62
g
/
m
d
)
.
Q.
The
p
H
of a blood stream is maintained by a proper balance of
H
2
C
O
3
and
N
a
H
C
O
3
.
What volume of 5 M
N
a
H
C
O
3
solution should be mixed with 10 mL of a sample of solution which is 2.5 M in
H
2
C
O
3
,
in order to maintain a
p
H
=
7.4.
(Take
p
K
a
1
for
H
2
C
O
3
=
6.7
,
l
o
g
2
=
0.3
,
l
o
g
5
=
0.7
)
Q.
Identify Bronsted acids in the reaction :
H
2
C
O
3
+
H
P
O
2
−
4
⇌
H
2
P
O
−
4
+
H
C
O
−
3
Q.
Consider the following three chemical reactions about carbonic anhydrase
(
i
)
C
O
2
+
H
2
O
→
H
2
C
O
3
(
i
i
)
H
2
C
O
3
→
H
+
+
H
C
O
−
3
(
i
i
i
)
H
2
C
O
3
→
H
2
O
+
C
O
2
Which of the above reactions for this enzyme is correct?
Q.
Blood
p
H
is controlled by the concentrations of
H
2
C
O
3
and
H
C
O
3
−
. In the presence of
N
a
H
C
O
3
,
p
H
of blood:
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