Lampiran Praktikum Utama
3
Perhitungan Data Hasil Praktikum mmolek H 2 O 2 = M . V . val = 0,04 x 5 x 2 = 0,4 mmolek mmolek KI = M . V . val = 0,1 x 10 x 1 = 1 mmolek mmolek Na 2 S 2 O 3 = M . V . val = 0,001 x 1 x 1 = 0,001 mmolek (pereaksi pembatas) mmolek H 2 O 2 yang bereaksi = mmolek Na 2 S 2 O 3 [ ] M [ ] Mencari Nilai ln K [ ] [ ] 1. t = 14,0 s 7,14 x 10 -3 ln K = -4,9417 4. t = 6,5 s 0,015 ln K = -4,1745
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Transcript of Lampiran Praktikum Utama
Perhitungan Data Hasil Praktikum
mmolek H2O2 = M . V . val
= 0,04 x 5 x 2
= 0,4 mmolek
mmolek KI = M . V . val
= 0,1 x 10 x 1
= 1 mmolek
mmolek Na2S2O3 = M . V . val
= 0,001 x 1 x 1
= 0,001 mmolek (pereaksi pembatas)
mmolek H2O2 yang bereaksi = mmolek Na2S2O3
[ ]
M
[ ]
Mencari Nilai ln K
[ ]
[ ]
1. t = 14,0 s
7,14 x 10
-3
ln K = -4,9417
4. t = 6,5 s
0,015
ln K = -4,1745
2. t = 12,0 s
8,33 x 10
-3
ln K = -4,7876
5. t = 5,0 s
0,020
ln K = -3,9121
3. t = 9,0 s
0,011
ln K = -4,4999
6. t = 4,0 s
0,025
ln K = -3,6889
Mencari Nilai
1. T = 283,0 K
=
4. T = 298,0 K
2. T = 288,0 K
0,003472
5. T = 303,0 K
= 0
3. T = 293,0 K
3
6. T = 308,0 K
Persamaan y
y = -4587,1 x + 11,202
y = mx + b
m = -4587,1
Maka m = - Ea/R
Ea = - ( m x R )
= - (-4587,1 x 8,314)
= 38137,1494 J/mol = 38,1371494 kJ/mol
b = intercept = ln A = 11,202
y = -4587.1x + 11.202 R² = 0.9909
-6
-5
-4
-3
-2
-1
0
0.0032 0.00325 0.0033 0.00335 0.0034 0.00345 0.0035 0.00355
ln K
1/T
Hubungan antara 1/T dan ln K
