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)?
Indicate the correct option.a) Graphite conducts electricity, being an isotropic materialb) Graphite is not a conductor of electricityc) Both are false
(f) SO:
Best Lewis Structure
3
e group geometry:_
shape/molecular geometry:,
(g) CF2CF2
Best Lewis Structure
polarity:
e group arrangement:_
shape/molecular geometry:
(h) (NH4)2SO4
Best Lewis Structure
polarity:
e group arrangement:
shape/molecular geometry:
polarity:
Sketch (with angles):
Sketch (with angles):
Sketch (with angles):
1.
Problem Set 3b
Chem 141
For each of the following compounds draw the BEST Lewis Structure then sketch the molecule (showing
bond angles). Identify (i) electron group geometry (ii) shape around EACH central atom (iii) whether the
molecule is polar or non-polar (iv)
(a) SeF4
Best Lewis Structure
e group arrangement:_
shape/molecular geometry:
polarity:
(b) AsOBr3
Best Lewis Structure
e group arrangement:_
shape/molecular geometry:
polarity:
Sketch (with angles):
Sketch (with angles):
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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