For the following half-reactions, answer these questions. Ce 4 + ( a q ) + e − → Ce 3 + ( a q ) E ° = + 1.61 V Ag + ( a q ) + e − → Ag ( s ) E ° = + 0.80 V Hg 2 2 + ( a q ) + 2 e − → 2 Hg ( l ) E ° = + 0.80 V Sn 2 + ( a q ) + 2 e − → Sn ( s ) E ° = − 0.14 V Ni 2 + ( a q ) + 2 e − → Ni ( s ) E ° = − 0.24 V Al 3 + ( a q ) + 3 e − → Al ( s ) E ° = − 1.68 V (a) Which is the weakest oxidizing agent? (b) Which is the strongest oxidizing agent? (c) Which is the strongest reducing agent? (d) Which is the weakest reducing agent? (e) Will Sn( s ) reduce Ag + ( aq ) to Ag( s )? (f) Will Hg( l ) reduce Sn 2 + ( aq ) to Sn( s )? (g) Which ion( s ) can be reduced by Sn( s )? (h) Which metal( s ) can be oxidized by Ag + ( aq )?
For the following half-reactions, answer these questions. Ce 4 + ( a q ) + e − → Ce 3 + ( a q ) E ° = + 1.61 V Ag + ( a q ) + e − → Ag ( s ) E ° = + 0.80 V Hg 2 2 + ( a q ) + 2 e − → 2 Hg ( l ) E ° = + 0.80 V Sn 2 + ( a q ) + 2 e − → Sn ( s ) E ° = − 0.14 V Ni 2 + ( a q ) + 2 e − → Ni ( s ) E ° = − 0.24 V Al 3 + ( a q ) + 3 e − → Al ( s ) E ° = − 1.68 V (a) Which is the weakest oxidizing agent? (b) Which is the strongest oxidizing agent? (c) Which is the strongest reducing agent? (d) Which is the weakest reducing agent? (e) Will Sn( s ) reduce Ag + ( aq ) to Ag( s )? (f) Will Hg( l ) reduce Sn 2 + ( aq ) to Sn( s )? (g) Which ion( s ) can be reduced by Sn( s )? (h) Which metal( s ) can be oxidized by Ag + ( aq )?
Solution Summary: The author explains that the weakest oxidizing agent needs to be identified by comparing the standard reduction potential of different half reactions.
For the following half-reactions, answer these questions.
Ce
4
+
(
a
q
)
+
e
−
→
Ce
3
+
(
a
q
)
E
°
=
+
1.61
V
Ag
+
(
a
q
)
+
e
−
→
Ag
(
s
)
E
°
=
+
0.80
V
Hg
2
2
+
(
a
q
)
+
2
e
−
→
2
Hg
(
l
)
E
°
=
+
0.80
V
Sn
2
+
(
a
q
)
+
2
e
−
→
Sn
(
s
)
E
°
=
−
0.14
V
Ni
2
+
(
a
q
)
+
2
e
−
→
Ni
(
s
)
E
°
=
−
0.24
V
Al
3
+
(
a
q
)
+
3
e
−
→
Al
(
s
)
E
°
=
−
1.68
V
(a) Which is the weakest oxidizing agent? (b) Which is the strongest oxidizing agent? (c) Which is the strongest reducing agent? (d) Which is the weakest reducing agent? (e) Will Sn(s) reduce Ag+(aq) to Ag(s)? (f) Will Hg(l) reduce Sn2+(aq) to Sn(s)? (g) Which ion(s) can be reduced by Sn(s)? (h) Which metal(s) can be oxidized by Ag+(aq)?
Q9. The insecticide DDT (in the box below) is useful in controlling mosquito populations and has
low toxicity to humans, but is dangerous to birds and fish. Hoping to alleviate the dangers, little
Johnny Whizbang, an aspiring chemist, proposes a new version of DDT ("Bromo-DDT") and
shows his synthesis to his boss. Will Johnny Whizbang's synthesis work? Or will he be fired?
Assume there is an excess of bromine and polybrominated products can be separated. Explain
why.
CH3
Br2, light
CBR3
ok-ok
Br
Br
Br
Br
CI
"Bromo-DDT"
CCl 3
DDT (dichlorodiphenyltrichloroethane)
CI
Differentiate the terms Monotectic, Eutectic, Eutectoid, Peritectic, Peritectoid.
Q5. Predict the organic product(s) for the following transformations. If no reaction will take place
(or the reaction is not synthetically useful), write "N.R.". Determine what type of transition state
is present for each reaction (think Hammond Postulate).
I
Br₂
CH3
F2, light
CH3
Heat
CH3
F₂
Heat
Br2, light
12, light
CH3
Cl2, light
Chapter 17 Solutions
OWLv2 for Masterton/Hurley's Chemistry: Principles and Reactions, 8th Edition, [Instant Access], 1 term (6 months)
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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