In the gas phase at 400°C, isopropyl alcohol (rubbing alcohol) decomposes to acetone, an important industrial solvent: ( C H 3 ) 2 C H O H ( g ) ⇌ ( C H 3 ) 2 C O ( g ) + H 2 ( g ) Δ H ° = 57.3 k j Isopropyl alcohol Acetone Does the amount of acetone increase, decrease, or remain the same when an equilibrium mixture of reactants and products is subjected to the following changes? (a) The temperature is increased. (b) The volume is increased. (c) Argon is added. (d) H 2 is added. (e) A catalyst is added.
In the gas phase at 400°C, isopropyl alcohol (rubbing alcohol) decomposes to acetone, an important industrial solvent: ( C H 3 ) 2 C H O H ( g ) ⇌ ( C H 3 ) 2 C O ( g ) + H 2 ( g ) Δ H ° = 57.3 k j Isopropyl alcohol Acetone Does the amount of acetone increase, decrease, or remain the same when an equilibrium mixture of reactants and products is subjected to the following changes? (a) The temperature is increased. (b) The volume is increased. (c) Argon is added. (d) H 2 is added. (e) A catalyst is added.
In the gas phase at 400°C, isopropyl alcohol (rubbing alcohol) decomposes to acetone, an important industrial solvent:
(
C
H
3
)
2
C
H
O
H
(
g
)
⇌
(
C
H
3
)
2
C
O
(
g
)
+
H
2
(
g
)
Δ
H
°
=
57.3
k
j
Isopropyl alcohol Acetone Does the amount of acetone increase, decrease, or remain the same when an equilibrium mixture of reactants and products is subjected to the following changes? (a) The temperature is increased. (b) The volume is increased. (c) Argon is added. (d)
H
2
is added. (e) A catalyst is added.
1.
For an unknown compound with a molecular formula of C8H100:
a.
What is the DU? (show your work)
b.
Solve the structure and assign each of the following spectra.
8
6
2
ō (ppm)
4
2
0
200
150
100
50
ō (ppm)
LOD
D
4000
3000
2000
1500
1000
500
HAVENUMBERI -11
16. The proton NMR spectral information shown in this problem is for a compound with formula
CioH,N. Expansions are shown for the region from 8.7 to 7.0 ppm. The normal carbon-13 spec-
tral results, including DEPT-135 and DEPT-90 results, are tabulated:
7
J
Normal Carbon
DEPT-135
DEPT-90
19 ppm
Positive
No peak
122
Positive
Positive
cus
и
124
Positive
Positive
126
Positive
Positive
128
No peak
No peak
4°
129
Positive
Positive
130
Positive
Positive
(144
No peak
No peak
148
No peak
No peak
150
Positive
Positive
してし
3. Propose a synthesis for the following transformation. Do not draw an arrow-pushing
mechanism below, but make sure to draw the product of each proposed step (3 points).
+ En
CN
CN
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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