For the following half-reactions, answer the questions below. Co 3 + ( a q ) + e − → Co 2 + ( a q ) E ° = + 1.953 V Fe 3 + ( a q ) + e − → Fe 2 + ( a q ) E ° = + 0.769 V I 2 ( a q ) + 2 e − → 2 I − ( a q ) E ° = + 0.534 V Pb 2 + ( a q ) + 2 e − → Pb ( s ) E ° = − 0.127 V Cd 2 + ( a q ) + 2 e − → Cd ( s ) E ° = − 0.402 V Mn 2 + ( a q ) + 2 e − → Mn ( s ) E ° = − 1.182 V (a) Which is the weakest reducing agent? (b) Which is the strongest reducing agent? (c) Which is the strongest oxidizing agent? (d) Which is the weakest oxidizing agent? (e) Will Pb( s ) reduce Fe 3 + ( aq ) to Fe 2 + ( aq )? (f) Will I - ( aq ) reduce Pb 2 + ( aq ) to Pb( s )? (g) Which ion(s) can be reduced by Pb( s )? (h) Which if any metal(s) can be oxidized by Fe 3 + ( aq )?
For the following half-reactions, answer the questions below. Co 3 + ( a q ) + e − → Co 2 + ( a q ) E ° = + 1.953 V Fe 3 + ( a q ) + e − → Fe 2 + ( a q ) E ° = + 0.769 V I 2 ( a q ) + 2 e − → 2 I − ( a q ) E ° = + 0.534 V Pb 2 + ( a q ) + 2 e − → Pb ( s ) E ° = − 0.127 V Cd 2 + ( a q ) + 2 e − → Cd ( s ) E ° = − 0.402 V Mn 2 + ( a q ) + 2 e − → Mn ( s ) E ° = − 1.182 V (a) Which is the weakest reducing agent? (b) Which is the strongest reducing agent? (c) Which is the strongest oxidizing agent? (d) Which is the weakest oxidizing agent? (e) Will Pb( s ) reduce Fe 3 + ( aq ) to Fe 2 + ( aq )? (f) Will I - ( aq ) reduce Pb 2 + ( aq ) to Pb( s )? (g) Which ion(s) can be reduced by Pb( s )? (h) Which if any metal(s) can be oxidized by Fe 3 + ( aq )?
Solution Summary: The author explains the weakest reducing agent and the strongest oxidizing agent needed to be identified.
For the following half-reactions, answer the questions below.
Co
3
+
(
a
q
)
+
e
−
→
Co
2
+
(
a
q
)
E
°
=
+
1.953
V
Fe
3
+
(
a
q
)
+
e
−
→
Fe
2
+
(
a
q
)
E
°
=
+
0.769
V
I
2
(
a
q
)
+
2
e
−
→
2
I
−
(
a
q
)
E
°
=
+
0.534
V
Pb
2
+
(
a
q
)
+
2
e
−
→
Pb
(
s
)
E
°
=
−
0.127
V
Cd
2
+
(
a
q
)
+
2
e
−
→
Cd
(
s
)
E
°
=
−
0.402
V
Mn
2
+
(
a
q
)
+
2
e
−
→
Mn
(
s
)
E
°
=
−
1.182
V
(a) Which is the weakest reducing agent? (b) Which is the strongest reducing agent? (c) Which is the strongest oxidizing agent? (d) Which is the weakest oxidizing agent? (e) Will Pb(s) reduce Fe3+(aq) to Fe2+(aq)? (f) Will I-(aq) reduce Pb2+(aq) to Pb(s)? (g) Which ion(s) can be reduced by Pb(s)? (h) Which if any metal(s) can be oxidized by Fe3+(aq)?
Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy
AS.
Note: if you have not been given enough information to decide a sign, select the "unknown" option.
reaction
observations
conclusions
A
The reverse of this reaction is always
spontaneous but proceeds slower at
temperatures below 41. °C.
ΔΗ is
(pick one)
AS is
(pick one)
ΔΗ is
(pick one)
B
This reaction is spontaneous except above
94. °C.
AS is
(pick one)
This reaction is always spontaneous, but
ΔΗ is
(pick one)
C
proceeds slower at temperatures below
−14. °C.
AS is
(pick one)
Х
00.
18
Ar
무ㅎ
B
1
1
Draw the product of the reaction shown below. Ignore inorganic
byproducts.
+
H
CH3CH2OH
HCI
Drawing
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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