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Question
Chemistry
Which of the following comments about the following equilibrium reaction is the most correct? H2SO4 (aq) + NH3 (aq) leftharpoons HSO-4 (aq) + NH+4 (aq)
Q. Which of the following comments about the following equilibrium reaction is the most correct?
H
2
S
O
4
(
a
q
)
+
N
H
3
(
a
q
)
⇌
H
S
O
4
−
(
a
q
)
+
N
H
4
+
(
a
q
)
1958
193
UPSEE
UPSEE 2011
Equilibrium
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A
The equilibrium lies mostly to the right
5%
B
The equilibrium lies mostly to the left
0%
C
The equilibrium is exactly in between where the concentration of each of the reactants is exactly equal to the concentration of each of the products
63%
D
The equilibrium depends on the temperature of the equilibrium reaction
32%
Solution:
H
2
S
O
4
when dissolved in water dissociates almost completely and produces a large number of
H
+
ions. These
H
+
ions are taken by
N
H
3
and its conjugate acid
N
H
4
+
is formed. Thus, the equilibrium lies to the right side or forward reaction.
H
2
S
O
4
(
a
q
)
+
N
H
3
(
a
q
)
⇌
H
S
O
4
−
(
a
q
)
+
N
H
4
+
(
a
q
)