5. Tabel Pia.docx

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4.

HASIL PENGAMATAN

4.1.

Permanganometri

4.1.1.

Standarisasi Larutan KMnO4

Tabel 1. Standarisasi Larutan KMnO4 Kelompok

Volume Asam

Volume

Normalitas

Normalitas

Oksalat (ml)

KMnO4

Asam

KMnO4

(ml)

Oksalat (N)

(N)

Perubahan Warna

F1

10

0,1

0,22

22

Beningmerah keunguan

F2

10

0,1

0,22

22

Beningmerah keunguan

F3

10

0,5

0,22

4,4

Beningmerah keunguan

F4

10

0,2

0,22

11

Beningmerah keunguan

F5

10

0,2

0,22

11

Beningmerah keunguan

F6

10

0,3

0,22

7,33

Beningmerah keunguan

4.1.2. Penetapan Kadar Asam Oksalat pada Sampel Tabel 2. Penetapan Kadar Asam Oksalat pada Sampel

Kelompok

F1

Sampel

Kubis oven

Volume

Volume

Kadar Asam

Sampel (ml)

KMnO4 (ml)

Oksalat (%)

10

0,3

99

Perubahan Warna

Cokelat muda → merah keunguan

F2

Kubis oven

10

0,3

99

Cokelat muda → ungu

F3

Kubis oven

10

1,4

92,4

Cokelat muda → ungu

F4

Kubis

4,5

742,5

Cokelat keruh → ungu

blender

10

F5

Kubis

10

blender

F6

Kubis

10

blender 4.2.

0,3

49,5

Cokelat → merah keunguan

0,3

32,98

Cokelat muda → ungu

Iodimetri

Tabel 3. Penetapan Kadar Vitamin C Kelompok

Sampel

Volume I2

Kadar Vitamin C

(ml)

(%)

Perubahan Warna

F1

Pepaya

10

0,0352

Orange → ungu

F2

Pepaya

27,3

0,0961

Orange → biru tua

F3

Pepaya

10,5

0,0368

Orange → biru tua

F4

Pepaya

24,2

0,0852

Orange → biru tua

F5

Pepaya

22,5

0,0792

Orange → orange kebiruan

F6

Pepaya

12,4

0,0436

Orange → biru tua

4.3.

Argentometri

4.3.1. Standarisasi AgNO3 Tabel 4. Standarisasi AgNO3 Volume KCl

N KCl

Volume AgNO3

N AgNO3

(ml)

(N)

(ml)

(N)

F1

10

0,07

7,5

0,09

Bening → merah bata

F2

10

0,07

6,8

0,09

Bening → merah bata

Kelompok

Warna

F3

10

0,07

7

0,10

Bening → merah bata

F4

10

0,07

6,9

0,10

Bening → merah bata

F5

10

0,07

7

0,10

Bening → merah bata

F6

10

0,07

6,3

0,11

Bening → merah bata

4.3.2. Penetapan Kadar CaCl2 Tabel 5. Penetapan Kadar CaCl2 Volume CaCl2

Volume AgNO3

(ml)

(ml)

F1

10

7,3

Bening → merah bata

72,93

F2

10

7,4

Bening → merah bata

81,07

F3

10

7,5

Bening → merah bata

83,25

F4

10

6,3

Bening → merah bata

69,93

F5

10

4,2

Bening → merah bata

46,62

F6

10

4,2

Bening → merah bata

51,28

Kelompok

Warna

Kadar CaCl2 (%)

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