APPLY 4.27 Police often use a Breathalyzer test to determine the ethanol (C 2 H 5 OH) content in a person's blood. The test involves a redox reaction that produces a color change. Potassium dichromate is reddish orange and chromium(lll) sulfate is green. The balanced reaction is: 2 K 2 C r 2 O 7 ( a q ) + 3 C 2 H 5 O H ( g ) + 8 H 2 S O 4 ( a q ) → 2 C r 2 ( S O 4 ) 3 ( a q ) + 2 K 2 S O 4 ( a q ) + 3 C H 3 C O O H ( a q ) + 11 H 2 O ( l ) (a) Identify the element that gets oxidized and the element that gets reduced. (b) Give the oxidizing agent and the reducing agent.
APPLY 4.27 Police often use a Breathalyzer test to determine the ethanol (C 2 H 5 OH) content in a person's blood. The test involves a redox reaction that produces a color change. Potassium dichromate is reddish orange and chromium(lll) sulfate is green. The balanced reaction is: 2 K 2 C r 2 O 7 ( a q ) + 3 C 2 H 5 O H ( g ) + 8 H 2 S O 4 ( a q ) → 2 C r 2 ( S O 4 ) 3 ( a q ) + 2 K 2 S O 4 ( a q ) + 3 C H 3 C O O H ( a q ) + 11 H 2 O ( l ) (a) Identify the element that gets oxidized and the element that gets reduced. (b) Give the oxidizing agent and the reducing agent.
APPLY 4.27 Police often use a Breathalyzer test to determine the ethanol (C2H5OH) content in a person's blood. The test involves a redox reaction that produces a color change. Potassium dichromate is reddish orange and chromium(lll) sulfate is green. The balanced reaction is:
2
K
2
C
r
2
O
7
(
a
q
)
+
3
C
2
H
5
O
H
(
g
)
+
8
H
2
S
O
4
(
a
q
)
→
2
C
r
2
(
S
O
4
)
3
(
a
q
)
+
2
K
2
S
O
4
(
a
q
)
+
3
C
H
3
C
O
O
H
(
a
q
)
+
11
H
2
O
(
l
)
(a) Identify the element that gets oxidized and the element that gets reduced.
(b) Give the oxidizing agent and the reducing agent.
Definition Definition Chemical reactions involving both oxidation and reduction processes. During a redox reaction, electron transfer takes place in such a way that one chemical compound gets reduced and the other gets oxidized.
Q3: Describes the relationship (identical, constitutional isomers, enantiomers or diastereomers)
of each pair of compounds below.
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H
CH3
OH
OH
CH3
H3C
OH
OH
OH
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C
CH3
CH3
CH3
CH3
H3C
CH 3
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Physics & Astronomy
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COOH
H
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H
2
OH
HO
CH3
HOOC
H
CH3
CH3
CH3
Br.
H
H
Br
and
H
H
H
H
Q1: For each molecule, assign each stereocenter as R or S. Circle the meso compounds. Label
each compound as chiral or achiral.
OH
HO
CI
Br
H
CI
CI
Br
CI
CI
Xf x f g
Br
D
OH
Br
Br
H₂N
R.
IN
Ill
I
-N
S
OMe
D
II
H
CO₂H
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These are synthesis questions. You need to show how the starting material can be converted into
the product(s) shown. You may use any reactions we have learned. Show all the reagents you
need. Show each molecule synthesized along the way and be sure to pay attention to the
regiochemistry and stereochemistry preferences for each reaction. If a racemic molecule is made
along the way, you need to draw both enantiomers and label the mixture as "racemic".
All of the carbon atoms of the products must come from the starting material!
?
H
H
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
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