CHEMIA FIZYCZNA |
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OBLICZENIA DO ZADANIA NR 3 |
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Malinowski Jarosław |
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Tabela 1 Objętości 0.1 molowych roztworów [cm3] żelazo- i żelazicyjanków porasu |
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Lp. |
ZLEWKA 1 |
ZLEWKA 2 |
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żelazocyjanek potasu [cm3] |
żelazicyjanek potasu [cm3] |
żelazocyjanek potasu [cm3] |
żelazicyjanek potasu [cm3] |
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1 |
20 |
0,2 |
0,2 |
20 |
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2 |
20 |
1 |
1 |
20 |
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3 |
20 |
2 |
2 |
20 |
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4 |
16 |
4 |
4 |
16 |
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5 |
14 |
6 |
6 |
14 |
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6 |
12 |
8 |
8 |
12 |
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7 |
10 |
10 |
10 |
10 |
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Tabela 2 |
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masa naważki[g] |
masa molowa[g/mol] |
liczba moli |
stężenie[mol/dm3] |
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K3[Fe(CN)6] |
6,4569 |
329,26 |
0,01961 |
0,09805 |
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K4[Fe(CN)6] |
8,4150 |
422,41 |
0,01992 |
0,09961 |
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Tabela 3 |
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P O M I A R Y SEM [V] |
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
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0,2170 |
0,1420 |
0,1090 |
0,0600 |
0,0250 |
0,0040 |
-0,0050 |
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0,2220 |
0,1430 |
0,1090 |
0,0600 |
0,0240 |
0,0040 |
-0,0050 |
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0,2290 |
0,1450 |
0,1080 |
0,0610 |
0,0240 |
0,0050 |
-0,0040 |
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0,2330 |
0,1460 |
0,1080 |
0,0620 |
0,0240 |
0,0050 |
-0,0040 |
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0,2350 |
0,1470 |
0,1080 |
0,0620 |
0,0240 |
0,0050 |
-0,0040 |
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średnia |
0,2272 |
0,1446 |
0,1084 |
0,0610 |
0,0242 |
0,0046 |
-0,0044 |
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Tabela 4 |
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Nr. roztworu |
Ilość moli K4[Fe(CN)6] w roztworze 1 |
Ilość moli K3[Fe(CN)6] w roztworze 1 |
ułamek mol. K4[Fe(CN)6] w roztworze 1 |
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1 |
1,99E-03 |
1,96E-05 |
0,9903 |
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2 |
1,99E-03 |
9,81E-05 |
0,9531 |
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3 |
1,99E-03 |
1,96E-04 |
0,9104 |
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4 |
1,59E-03 |
3,92E-04 |
0,8025 |
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5 |
1,39E-03 |
5,88E-04 |
0,7033 |
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6 |
1,20E-03 |
7,84E-04 |
0,6038 |
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7 |
9,96E-04 |
9,81E-04 |
0,5039 |
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Tabela 5 Wartości E eksperymentalnego i E obliczonego z równania /1/ |
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n* = x2 |
Eexp. [V] |
Edośw. [V] |
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pola trapezów |
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0,0097 |
0,2272 |
0,2373 |
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F [C] |
96500 |
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0,006908505 |
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0,0469 |
0,1446 |
0,1546 |
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T [K] |
298 |
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0,005402362 |
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0,0896 |
0,1084 |
0,1190 |
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0,009137186 |
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0,1975 |
0,0610 |
0,0720 |
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0,004226417 |
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0,2967 |
0,0242 |
0,0443 |
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0,001433138 |
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0,3962 |
0,0046 |
0,0216 |
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0,000009984 |
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0,4961 |
-0,0044 |
0,0008 |
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suma |
0,027117590038235 |
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Tabela 6 |
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nr roztworu |
n* = x2 |
Edośw. [V] |
SM |
(SM/F)T [J/mol K] |
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8,78136724392498 |
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-- |
0,5 |
-- |
-- |
0,00000000 |
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1 |
0,4961 |
0,0008 |
0,0010 |
0,00000318 |
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2 |
0,3962 |
0,0216 |
0,6992 |
0,00215929 |
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3 |
0,2967 |
0,0443 |
1,4282 |
0,00441045 |
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4 |
0,1975 |
0,0720 |
2,3129 |
0,00714249 |
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5 |
0,0896 |
0,1190 |
4,1586 |
0,01284198 |
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6 |
0,0469 |
0,1546 |
2,1385 |
0,00660390 |
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7 |
0,0097 |
0,2373 |
2,8554 |
0,00881781 |
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suma |
10,7385 |
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x=n* |
y=(SM/F)T |
xy |
x2 |
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0,4961 |
0,000003 |
1,5772E-06 |
2,4608E-01 |
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0,3962 |
0,002159 |
8,5557E-04 |
1,5700E-01 |
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0,2967 |
0,004410 |
1,3086E-03 |
8,8034E-02 |
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0,1975 |
0,007142 |
1,4106E-03 |
3,9004E-02 |
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0,0896 |
0,012842 |
1,1509E-03 |
8,0312E-03 |
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0,0469 |
0,006604 |
3,0979E-04 |
2,2006E-03 |
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0,0097 |
0,008818 |
8,5955E-05 |
9,5021E-05 |
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sumy |
1,5328 |
0,041979 |
5,1230E-03 |
5,4044E-01 |
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średnie |
0,2190 |
0,005997 |
7,3185E-04 |
7,7206E-02 |
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a |
-1,9867E-02 |
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b |
1,0347E-02 |
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