bab iv
DESCRIPTION
HUYTRUYGJHFHGTRANSCRIPT
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BAB IV
HASIL PENGAMATAN
IV.1 Hasil pengamatan
I.Kelarutan
Suhu
(ºC)
Berat sampel
(g)
Berat kertas
saring kosong
(g)
Berat kertas saring
dengan residu (g)
Berat residu
(g)
45 ºC 2 g 0,39 g 0,53 g 0,14 g
60 ºC 2 g 0,40 g 0,48 g 0,08 g
II. Penentuan Koefisien Distribusi
Berat sampel (mg) Volume titran (ml)
Tanpa partisi Dengan partisi
100 mg 2,65 ml 2,40 ml
100 mg 1,8 ml 1,6 ml
IV.2 Perhitungan
I. Kelarutan
Dik : Berat sampel = 2 g
Berat kertas saring kosong = 1. 0,39 g
2. 0,40 g
Volume pelarut = 50 ml
Dit : kelarutan...?
Peny :
- Berat residu
1. Suhu 45 ºC
Berat residu = berat kertas saring denga residu – berat kertas saring
kosong
= 0,53 g – 0,39 g
= 0,14 g
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2. Suhu 60 ºC
Berat residu = berat kertas saring denga residu – berat kertas saring
kosong
= 0,48 g – 0,40 g
= 0,08 g
- Berat zat terlarut
1. Suhu 45 ºC
Berat zat terlarut = berat sampel – berat residu
= 2 g – 0,14 g
= 1,86 g
2. Suhu 60 ºC
Berat zat terlarut = berat sampel – berat residu
= 2 g – 0,08 g
= 1,92 g
- Kelarutan
1. Suhu 45 ºC
Kelarutan = berat zat terlarutvolume pelarut
= 1,86g50ml
= 0,0372 g/ml
2. Suhu 60 ºC
Kelarutan = berat zat terlarutvolume pelarut
= 1,92g50ml
= 0,0384 g/ml
II. Penentuan koefisien distribusi
Perc 1
Kadar tanpa partisi = Vtitran×Ntitran×BE
mg sampel × 100 % ..... (a)
= 2,65ml×1N×61,83
100mg × 100 %
= 163,84 %
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Kadar dengan partisi = Vtitran×Ntitran×BE
mg sampel × 100 % ..... (b)
= 2,40ml×1N×61,83
100mg × 100 %
= 148,39 %
Kadar fase minyak = a – b
= 163,84 – 148,39
= 15,45 %
Kadar fase air = a
= 163,84 %
K = C1C2
= kadar faseminyakkadar fase air
= 15,45
163,84 = 0,094
Perc 2
Kadar tanpa partisi = Vtitran×Ntitran×BE
mg sampel × 100 % ..... (a)
= 1,8ml×1N×61,83
100mg × 100 %
= 111,29 %
Kadar dengan partisi = Vtitran×Ntitran×BE
mg sampel × 100 % ..... (b)
= 1,6ml×1N ×61,83
100mg × 100 %
= 98,92 %
Kadar fase minyak = a – b
= 111,29 – 98,92
= 12,37 %
Kadar fase air = a
= 111,29 %
K = C1C2
= kadar faseminyakkadar fase air
= 12,37111,29
= 0,111
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Krata-rata = Kperc1+Kperc 2
2 =
0,094+0,1112
= 0,1025