BAB IV HASIL DAN PEMBAHASAN
4.1 Data analisa Tabel 4.1 Data Hasil Analisis Kadar NaCl
No. Sampel
Berat Sampel
gram Volum
Titrasi
Blangko ml
Volum Titrasi
Sampel ml
Normalitas AgNO
3
Kadar NaCl
1. Menara Eifel
Margarin Krim 1,4680
0,1 4,8
0,1005 1,8823
1,4721 0,1
4,7 0,1005
1,8371 1,4972
0,1 4,9
0,1005 1,8848
2. Mitra Margarin
Krim 1,3741
0,1 4,7
0,1005 1,9681
1,3825 0,1
4,7 0,1005
1,9562 1,3692
0,1 4,6
0,1005 1,9322
3. Margarin
Palvita Belawan
1,3842 0,1
4,8 0,1005
1,9962 1,3971
0,1 4,7
0,1005 1,9357
1,3632 0,1
4,8 0,1005
1,9977
Tabel 4.2 Data Hasil Analisis Kadar H
2
O
No. Sampel
Beaker Glass Kosong
gram Beaker
Glass dan Sampel
gram Berat
Konstan gram
Kadar H
2
O
1. Menara Eifel
Margarin Krim 50,9384
62,7351 60,1766
21,6882 50,9472
62,7568 60,1752
21,8601 50,9583
62,7271 60,1756
21,6802
2. Mitra Margarin
Krim 50,9362
62,4867 60,1736
20,0259 50,9365
62,4862 60,1731
20,0481 50,9824
62,4853 60,1750
20,0845
3. Margarin Palvita
Belawan 50,9273
62,7352 60,1765
21,6693 50,9445
62,7563 60,1752
21,8518 50,9576
62,7364 60,1755
21,7416
Universitas Sumatera Utara
4.2 Perhitungan 4.2.1 Kadar NaCl
���� = �� − �� �� . � ����
�
. �� ��
����� ������
Keterangan : Vs = Volume titrasi sampel Vb = Volume titrasi blanko
A. Untuk Sample Menara Eifel Margarin Krim
I. ���� =
4,8−0,1 �� . 0,1005 � .
58,5 10
1,4680 �
= 1,8823
II. ���� =
4,7−0,1�� . 0,1005 � .�
58,5 10
� 1,4721 �
= 1,8371
III. ���� =
4,9−0,1�� . 0,1005 � .�
58,5 10
� 1,4972 �
= 1,8848
B. Untuk Sample Mitra Margarin Krim
I. ���� =
4,7−0,1 �� . 0,1005 � .
58,5 10
1,3741 �
= 1,9681
II. ���� =
4,7−0,1 �� . 0,1005 � .
58,5 10
1,3825 �
= 1,9562
III. ���� =
4,6−0,1 �� . 0,1005 � .
58,5 10
1,3692 �
= 1,9322
C. Untuk Sample Margarin Palvita Belawan
I. ���� =
4,8−0,1 �� . 0,1005 � .
58,5 10
1,3842 �
= 1,9962
II. ���� =
4,7−0,1 �� . 0,1005 � .
58,5 10
1,3971 �
= 1,9357
Universitas Sumatera Utara
III. ���� =
4,8−0,1 �� . 0,1005 � .
58,5 10
1,3832 �
= 1,9977
4.2.2 Kadar H
2
O
�
�
� =
�−� �−�
. ���
Keterangan : A = Berat beaker glass kosong B = Berat beaker glass dan sampel
C = Berat konstan A.
Untuk Sample Menara Eifel Margarin Krim I.
�
2
� =
62,7351−60,1766 � 62,7351−50,9384�
. 100 = 21,6882 II.
�
2
� =
62,7568−60,1752 � 62,7568−50,9472�
. 100 = 21,8601 III.
�
2
� =
62,7271−60,1756 � 62,7271−50,9583�
. 100 = 21,6802
B. Untuk Sample Mitra Margarin Krim
I. �
2
� =
62,4867−60,1736 � 62,4867−50,9362�
. 100 = 20,0259 II.
�
2
� =
62,4862−60,1731 � 62,4862−50,9365�
. 100 = 20,0481 III.
�
2
� =
62,4853−60,1750 � 62,4853−50,9824�
. 100 = 20,0845
C. Untuk Sample Margarin Palvita belawan
I. �
2
� =
62,7352−60,1765 � 62,7352−50,9273�
. 100 = 21,6693 II.
�
2
� =
62,7563−60,1752 � 62,7563−50,9445�
. 100 = 21,8518
Universitas Sumatera Utara
III. �
2
� =
62,7364−60,1755 � 62,7364−50,9576�
. 100 = 21,7416
4.3 Pembahasan