Ethyl acetate, a solvent used in many fingernail-polish removers, is made by the reaction of acetic acid with ethanol: C H 3 C O 2 H ( s o ln ) + C H 3 C H 2 O H ( s o ln ) ⇌ C H 3 C O 2 C H 2 C H 3 ( S o ln ) + H 2 O ( s o ln ) Δ H ° = − 2.9 k j Does the amount of ethyl acetate in an equilibrium mixture increase or decrease when the temperature is increased how does K change when the temperature is decreased? Justify your answers using Le Chatelier’s principle.
Ethyl acetate, a solvent used in many fingernail-polish removers, is made by the reaction of acetic acid with ethanol: C H 3 C O 2 H ( s o ln ) + C H 3 C H 2 O H ( s o ln ) ⇌ C H 3 C O 2 C H 2 C H 3 ( S o ln ) + H 2 O ( s o ln ) Δ H ° = − 2.9 k j Does the amount of ethyl acetate in an equilibrium mixture increase or decrease when the temperature is increased how does K change when the temperature is decreased? Justify your answers using Le Chatelier’s principle.
Solution Summary: The author explains Le Chatelier's principle that if a change occurs in terms of concentration, pressure, temperature or volume in an equilibrium system, the net reaction occurs to counteract the change.
Ethyl acetate, a solvent used in many fingernail-polish removers, is made by the reaction of acetic acid with ethanol:
C
H
3
C
O
2
H
(
s
o
ln
)
+
C
H
3
C
H
2
O
H
(
s
o
ln
)
⇌
C
H
3
C
O
2
C
H
2
C
H
3
(
S
o
ln
)
+
H
2
O
(
s
o
ln
)
Δ
H
°
=
−
2.9
k
j
Does the amount of ethyl acetate in an equilibrium mixture increase or decrease when the temperature is increased how does K change when the temperature is decreased? Justify your answers using Le Chatelier’s principle.
At an electrified interface according to the Gouy-Chapman model, what types of interactions do NOT occur between the ions and the solvent according to this theory?
Please predict the products for each of the
following reactions.
Clearly show the regiochemistry (Markovnikov
vs anti-Markovnikov) and stereochemistry
(syn- vs anti- or both).
If a mixture of enantiomers is formed, please
draw all the enantiomers.
Hint: In this case you must choose the best
answer to demonstrate the stereochemistry of
H2 addition.
1.03
2. (CH3)2S
BIZ
CH₂OH
2. DMS
KMnO4, NaOH
ΖΗ
Pd or Pt (catalyst)
HBr
20 1
HBr
ROOR (peroxide)
HO
H-SO
HC
12 11 10
BH, THE
2. H2O2, NaOH
Brz
cold
HI
19
18
17
16
MCPBA
15
14
13
A
Br
H₂O
BH3⚫THF
Brz
EtOH
Pd or Ni (catalyst)
D₂ (deuterium)
1. Os04
2. H2O2
CH3CO3H
(peroxyacid)
1. MCPBA
2. H₂O*
H
B
+
H
H
H
"H
C
H
H
D
Explain how Beer’s Law can be used to determine the concentration in a selected food sample. Provide examples.
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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