Calculate E°cell. Mn(s) + Fe2+(s) (aq) ↔ Mn2+ (aq) + Fe (s) a)E°cell = ?V b) Calculate E° for the for metal, Q (Q3+/Q) for the following electrochemical process. Q(s) | Q3+ (aq,1M) || Pb4+ (aq,1M), Pb2+ (aq,1M)| C (graphite) ...... E°cell = +0.644V c)Calculate the pH for the following reaction : Ag(s) | Ag+ (aq, 0.015 M) || NiO2(s) | Ni2+ (aq, 0.010M) | Pt (s) E (cell) = 0.952 V
Calculate E°cell. Mn(s) + Fe2+(s) (aq) ↔ Mn2+ (aq) + Fe (s) a)E°cell = ?V b) Calculate E° for the for metal, Q (Q3+/Q) for the following electrochemical process. Q(s) | Q3+ (aq,1M) || Pb4+ (aq,1M), Pb2+ (aq,1M)| C (graphite) ...... E°cell = +0.644V c)Calculate the pH for the following reaction : Ag(s) | Ag+ (aq, 0.015 M) || NiO2(s) | Ni2+ (aq, 0.010M) | Pt (s) E (cell) = 0.952 V
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter17: Spontaneity, Entropy, And Free Energy
Section: Chapter Questions
Problem 107CWP: Given the thermodynamic data below, calculate S and Ssurr for the following reaction at 25C and 1...
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Calculate E°cell.
Mn(s) + Fe2+(s) (aq) ↔ Mn2+ (aq) + Fe (s)
a)E°cell = ?V
b) Calculate E° for the for metal, Q (Q3+/Q) for the following
Q(s) | Q3+ (aq,1M) || Pb4+ (aq,1M), Pb2+ (aq,1M)| C (graphite) ...... E°cell = +0.644V
c)Calculate the pH for the following reaction :
Ag(s) | Ag+ (aq, 0.015 M) || NiO2(s) | Ni2+ (aq, 0.010M) | Pt (s) E (cell) = 0.952 V
Transcribed Image Text:19 Thermodynamic Quantities for Selected Substances at 298.15 K (25°C)
AHf
AGf
AS°
AHf
(kJ/mol)
AGf
(kJ/mol)
AS°
Substance
(kJ/mol)
(kJ/mol)
(J/mol-K)
Substance
(J/mol-K)
Aluminum
Chlorine
CI (g)
C (аq)
Cl2 (g)
HCI (aq)
HCI (g)
Chromium
Al (s)
AIC13 (s)
28.32
121.7
105,7
- 131,2
165.2
- 705.6
- 630.0
109.3
- 167.2
56.5
Al203 (s)
- 1669.8
1576.5
51.00
222,96
- 131.2
-95.27
- 167.2
56.5
186,69
Barium
-
-
Ba(s)
BaCO3(s)
BaO(s)
Beryllium
Be(s)
63.2
-92.30
- 1216,3
- 553.5
- 1137.6
112.1
Cr (g)
Cr (s)
Cr203 (s)
Cobalt
Со (g)
Copper
Cu (s)
CuCl2 (s)
CuO (s)
- 525.1
70.42
397.5
352.6
174.2
23.6
9.44
- 1139.7
- 1058.1
81.2
BeO(s)
Be(ОН)2(8)
13.77
50.21
- 608.4
-579,1
- 817.9
- 905.8
439
393
179
Bromine
111.8
- 120.9
Br(g)
Br-(aq)
Br2(g)
Br2(1)
HBr(g)
Calcium
Ca(g)
Ca(s)
CaCO3 (s, calcite)
CaCl2(s)
CaF2(s)
CaO(s)
Ca(OH)2(s)
CaSO4(s)
82.38
174.9
33.30
108.1
- 102.8
- 167,7
- 128,3
- 147.9
80.71
- 205.9
30,71
3.14
245.3
- 156,1
42,59
-
Cu20 (s)
Fluorine
F (g)
F- (aq)
F2 (g)
HF (g)
Hydrogen
152.3
- 170.7
92.36
-36.23
-53.22
198.49
80.0
61.9
158.7
- 13.8
202,7
179.3
145,5
154.8
41.4
- 332.6
- 278,8
- 1207.1
- 795.8
-1128.76
92.88
- 268.61
-270.70
173.51
- 7484
104.6
- 1219,6
- 1167.3
68.87
H (g)
217.94
203.26
114.60
- 635.5
- 986.2
-604.17
- 898.5
39.75
83.4
H+(aq)
H+ (g)
Н2 (g)
Iodine
I (g)
I (aq)
I2 (g)
I2 (s)
НI (g)
1536.2
1517.0
108.9
- 1434.0
- 1321.8
106.7
130.58
Carbon
718.4
C(g)
C(s, diamond)
C(s, graphite)
CCI4 (g)
CCI4 (1)
672.9
158.0
106.60
70.16
180,66
1.88
2.84
2.43
-55.19
-51.57
111.3
5.69
62.25
19.37
260,57
- 106.7
- 139.3
-64.0
309.4
116.73
- 68.6
214.4
25.94
1.30
206.3
- 679.9
- 74,8
CF4 (g)
CH4 (g)
C2H2 (g)
C2H4 (g)
C2H6 (g)
C2H5 (g)
C4H10 (g)
- 635.1
262.3
Iron
- 50.8
Fe (g)
Fe (s)
Fe2+ (aq)
Fe3+ (aq)
FeCl2 (s)
FeCl3 (s)
FeO (s)
Fe203 (s)
186.3
415,5
369,8
180,5
226,7
209,2
200.8
27.15
52.30
68.11
219.4
-87.86
-84.93
113.4
-84.68
-32.89
229.5
-47.69
-10.54
293.3
-103.85
-23.47
269.9
-341.8
- 302.3
1179
-124.73
- 15.0
310.0
- 400
- 334
142.3
- 271.9
C4H10 (1)
C6H6 (g)
C6H6 (1)
CH3OH (g)
CH3OH (1)
C2H5OH (g)
C5H5OH (1)
C6H1206 (s)
CO (g)
CO2 (g)
HC2H3O2 (1)
H2CO (g)
НзСCНО (g)
Cesium
Cs (g)
Cs (s)
CSCI (s)
- 147.6
- 15.0
231.0
- 255,2
60.75
82.9
129.7
269.2
-822.16
-740.98
89.96
- 1117.1
- 171.5
- 1014.2
- 160.1
49.0
124.5
172.8
Fez04 (s)
FeS2 (s)
146.4
-
- 201.2
- 161.9
237.6
52.92
- 238.6
-166,23
126.8
Lead
- 235,1
- 168.5
282.7
РЬ (s)
PbBr2 (s)
68.85
- 277,7
-174.76
160.7
- 277.4
- 260.7
161
-1273.02
- 910.4
212.1
РЬСОЗ (s)
-6994
- 625.5
131.0
- 110.5
- 393,5
- 137.2
Pb(NO3)2 (aq)
Pb(NO3)2 (s)
PbO (s)
197.9
-421,3
-246.9
303,3
- 394.4
213.6
- 451.9
- 487.0
- 392.4
159.8
- 217.3
- 187.9
68.70
-116.
-110
219
Lithium
-166
-133.7
266
Li (g)
Li (s)
Lit (g)
LICI (s)
159,3
126.6
138,8
29.09
76.50
49.53
175.6
685.7
648.5
133.0
85.15
- 408.3
- 384.0
59.30
- 442.8
-414.4
101.2
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