The following reaction is an important reaction in the citric acid cycle: citrate ( aq ) + N A D o x ( a q ) + H 2 O ( l ) ⇌ C O 2 ( a q ) + N A D r e d + o x o g l u t a r a t e ( a q ) K = 0.387 Write the equilibrium constant expression for the above reaction. Give the following data for this reaction, [ citrate ] = 0.00128 M, [NAD ns ] = 0.00868 M, [ H 2 O ] = 55.5 M , [ NAD res ] =0 .00132M , and [ oxoglutarate ] = 0.00866 M , calculate the reaction quotient. Is this reaction at equilibrium? If not, in which direction will it proceed?
The following reaction is an important reaction in the citric acid cycle: citrate ( aq ) + N A D o x ( a q ) + H 2 O ( l ) ⇌ C O 2 ( a q ) + N A D r e d + o x o g l u t a r a t e ( a q ) K = 0.387 Write the equilibrium constant expression for the above reaction. Give the following data for this reaction, [ citrate ] = 0.00128 M, [NAD ns ] = 0.00868 M, [ H 2 O ] = 55.5 M , [ NAD res ] =0 .00132M , and [ oxoglutarate ] = 0.00866 M , calculate the reaction quotient. Is this reaction at equilibrium? If not, in which direction will it proceed?
Solution Summary: The author explains that the equilibrium constant expression for the given reaction should be determined and need to calculate the reaction quotient for that reaction.
The following reaction is an important reaction in the citric acid cycle:
citrate
(
aq
)
+
N
A
D
o
x
(
a
q
)
+
H
2
O
(
l
)
⇌
C
O
2
(
a
q
)
+
N
A
D
r
e
d
+
o
x
o
g
l
u
t
a
r
a
t
e
(
a
q
)
K
=
0.387
Write the equilibrium constant expression for the above reaction. Give the following data for this reaction,
[
citrate
]
=
0.00128
M,
[NAD
ns
]
=
0.00868
M,
[
H
2
O
]
=
55.5
M
,
[
NAD
res
]
=0
.00132M
, and
[
oxoglutarate
]
=
0.00866
M
, calculate the reaction quotient. Is this reaction at equilibrium? If not, in which direction will it proceed?
People who are both alcoholic andexposed to halogen compounds often die of liver failure. Whymight this be a logical ultimate result?
Consider the oxidation of NADH by molecular oxygen as carried out via the electron-transport pathway:NADH + H+ + ½ O2 → NAD+ + H2OThe equilibrium constant (Keq) for this reaction is:
a
2.05 x 102
b
7.09 x 103
c
12.05 x 109
d
8.54 x 107
e
6.15 x 1013
f
6.02 x 1023
g
2.63 x 1038
h
4.37 x 1019
i
5.0 x 1026
Stearic acid, nature's most common fatty acid, dimerizes when dissolved in hexane:
2C17H35COOH
(C17H35COOH)2; ΔH°rxn = –172 kJ/mol
The equilibrium constant for this reaction at 28°C is 2.9 × 103. Estimate the equilibrium constant at 38°C. (R = 8.314 J/K• mol)
Chapter 15 Solutions
General Chemistry: Principles and Modern Applications, Loose Leaf Version (11th Edition)
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell