19

LAMPIRAN I

Perhitungan Standarisasi Larutan Standart Dinatrium EDTA 0,01 M :

1.Larutan Kalsium Karbonat 0,01 M

Diketahui :

Berat CaCO3 yang ditimbang = 1,00284 gram

Mr CaCO3 = 100,09

Volume = 1000 mL

Keterangan :

M =

)

M =

M =

M= 0,01001938

Maka Molaritas Larutan CaCO3 = 0,01 M

2.Larutan Dinatrium EDTA 0,01 M

Diketahui:

M CaCO3 = 0,01 M

Volume CaCO3 = 10 ml

Volume CaCO3 yang di pipet :

V1 = 10, mL

V2 = 10,1 mL

V3 = 10,1 mL

20

Rata –rata =

=

= 10,06

Jadi M Na2EDTA :

M Na2EDTA =

(mmol / mL)

=

=

= 0.009940 M

Maka Molaritas Dinatrium EDTA adalah 0,009940 M

21

LAMPIRAN II

Komposisi Sampel

Sampel A ( Pepsodent Whitening)

Sampel B ( Systema Nano)

Sampel C (Zact)

22

LAMPIRAN III

Perhitungan Kadar senyawa abrasif ( Ca) dalam sampel

1. Kadar senyawa abrasif (Ca) untuk sampel A ( Pepsodent Whitening)

Sampel A1

Diketahui :

Molaritas Na2EDTA = 0,009940 M

Kesetaraan ( ) = 1 mL Dinatrium EDTA 0,0 1 M 4,008 mg Ca

Berat Sampel ( G) = 15,6 g x 1/5 = 3,12 g = 3.120 mg

Volume titrasi = 3,2 mL

Pengenceran sampel = )

) = 5

Kadar Kalsium (%

) = V x M/0,01 x ( ) 4,008 mg x P

(%

) = 3,2 x 0,009940/0,01 x 4,008 x 5 X 100 %

3.120 mg

(%

) = 2,043 %

Sampel A 2

Diketahui :

Molaritas Na2EDTA = 0,009940 M

Kesetaraan ( ) = 1 mL Dinatrium EDTA 0,0 1 M 4,008 mg Ca

Berat Sampel ( G) = 15,2 g x 1/5 = 3,40 g = 3.040 mg

Volume titrasi = 3,3 mL

Pengenceran sampel = )

) = 5

Kadar Kalsium (%

) = V x M/0,01 x ( ) 4,008 mg x P

G (mg)

X 100 %

G (mg)

X 100 %

23

(%

) = 3,3 x 0,009940/0,01 x 4,008 x 5 X 100 %

3.040 mg

(%

) = 2,162 %

Sampel A 3

Diketahui :

Molaritas Na2EDTA = 0,009940 M

Kesetaraan ( ) = 1 mL Dinatrium EDTA 0,0 1 M 4,008 mg Ca

Berat Sampel ( G) = 15,48 g x 1/5 = 3,096 g = 3.096 mg

Volume titrasi = 3,2 mL

Pengenceran sampel = )

) = 5

Kadar Kalsium (%

) = V x M/0,01 x ( ) 4,008 mg x P

(%

) = 3,2 x 0,009940/0,01 x 4,008 x 5 X 100 %

3.096 mg

(%

) = 2,058 %

2. Kadar senyawa abrasif (Ca) untuk sampel B ( Systema Nano)

Sampel B 1

Diketahui :

Molaritas Na2EDTA = 0,009940 M

Kesetaraan ( ) = 1 mL Dinatrium EDTA 0,0 1 M 4,008 mg Ca

Berat Sampel ( G) = 15,018 g x 1/5 = 3,003 g = 3.003 mg

Volume titrasi = 3,8 mL

Pengenceran sampel = )

) = 5

Kadar Kalsium (%

) = V x M/0,01 x ( ) 4,008 mg x P

G (mg)

X 100 %

G (mg)

X 100 %

24

(%

) = 3,8 x 0,009940/0,01 x 4,008 x 5 X 100 %

3.003 mg

(%

) = 2,520 %

Sampel B 2

Diketahui :

Molaritas Na2EDTA = 0,009940 M

Kesetaraan ( ) = 1 mL Dinatrium EDTA 0,0 1 M 4,008 mg Ca

Berat Sampel ( G) = 15,018 g x 1/5 = 3,003 g = 3.026 mg

Volume titrasi = 3,8 mL

Pengenceran sampel = )

) = 5

Kadar Kalsium (%

) = V x M/0,01 x ( ) 4,008 mg x P

(%

) = 3,8 x 0,009940/0,01 x 4,008 x 5 X 100 %

3.026 mg

(%

) = 2,501 %

Sampel B 3

Diketahui :

Molaritas Na2EDTA = 0,009940 M

Kesetaraan ( ) = 1 mL Dinatrium EDTA 0,0 1 M 4,008 mg Ca

Berat Sampel ( G) = 15,21 g x 1/5 = 3,042 g = 3.042 mg

Volume titrasi = 4 mL

Pengenceran sampel = )

) = 5

Kadar Kalsium (%

) = V x M/0,01 x ( ) 4,008 mg x P

G (mg)

X 100 %

G (mg)

X 100 %

25

(%

) = 4 x 0,009940/0,01 x 4,008 x 5 X 100 %

3.042 mg

(%

) = 2,619 %

3. Kadar senyawa abrasif (Ca) untuk sampel C ( Systema Nano)

Sampel C 1

Diketahui :

Molaritas Na2EDTA = 0,009940 M

Kesetaraan ( ) = 1 mL Dinatrium EDTA 0,0 1 M 4,008 mg Ca

Berat Sampel ( G) = 15,08 g x 1/5 = 3,016 g = 3.016 mg

Volume titrasi = 4 mL

Pengenceran sampel = )

) = 5

Kadar Kalsium (%

) = V x M/0,01 x ( ) 4,008 mg x P

(%

) = 4 x 0,009940/0,01 x 4,008 x 5 X 100 %

3.016 mg

(%

) = 2,641 %

Sampel C 2

Diketahui :

Molaritas Na2EDTA = 0,009940 M

Kesetaraan ( ) = 1 mL Dinatrium EDTA 0,0 1 M 4,008 mg Ca

Berat Sampel ( G) = 15,001 g x 1/5 = 3 g = 3.000 mg

Volume titrasi = 3,9 mL

Pengenceran sampel = )

) = 5

Kadar Kalsium (%

) = V x M/0,01 x ( ) 4,008 mg x P

G (mg)

X 100 %

G (mg)

X 100 %

26

(%

) = 3,9 x 0,009940/0,01 x 4,008 x 5 X 100 %

3000 mg

(%

) = 2,589 %

Sampel C 3

Diketahui :

Molaritas Na2EDTA = 0,009940 M

Kesetaraan ( ) = 1 mL Dinatrium EDTA 0,0 1 M 4,008 mg Ca

Berat Sampel ( G) = 15,05 g x 1/5 = 3,01g = 3.010 mg

Volume titrasi = 4 mL

Pengenceran sampel = )

) = 5

Kadar Kalsium (%

) = V x M/0,01 x ( ) 4,008 mg x P

(%

) = 4 x 0,009940/0,01 x 4,008 x 5 X 100 %

3.010 mg

(%

) = 2,647 %

G (mg)

X 100 %

27

LAMPIRAN IV

Data Perhitungan Persentase Kadar Rata-rata Dan Perhitungan Simpangan Kadar

Kalsium

Sampel A

1. X₁ = 2,043 %

2. X₂ = 2,162 %

3. X₃ = 2,058 %

Simpangan kadar 1 dan 2

kadar rata-rata =

=

= 2,1025 %

% Simpangan kadar = ₁

x 100%

=

x 100%

=

x 100%

= 2,82 %

Simpangan kadar 2 dan 3

kadar rata-rata =

=

= 2,11 %

28

% Simpangan kadar =

x 100%

=

x 100%

=

x 100%

= 2,46 %

Simpangan kadar 3 dan 1

kadar rata-rata =

=

= 2,050 %

% Simpangan kadar =

x 100%

=

x 100%

=

x 100%

= 0,39 %

Kadar sebenarnya diperoleh dari kadar rata-rata dengan simpangan kadar

terkecil yaitu 2,050 %

Sampel B

1. X₁ = 2,5206 %

2. X₂ = 2,501 %

3. X₃ = 2,619 %

29

Simpangan kadar 1 dan 2

kadar rata-rata = ₁ ₂

=

= 2,5108 %

% Simpangan kadar = ₁

x 100%

=

x 100%

=

x 100%

= 0,390 %

Simpangan kadar 2 dan 3

kadar rata-rata =

=

= 2,56 %

% Simpangan kadar =

x 100%

=

x 100%

=

x 100%

= 2,30 %

Simpangan kadar 3 dan 1

kadar rata-rata =

=

= 2,57%

30

% Simpangan kadar =

x 100%

=

x 100%

=

x 100%

= 1,90 %

Kadar sebenarnya diperoleh dari kadar rata-rata dengan simpangan kadar terkecil

yaitu 2,5108 %

Sampel C

1. X₁ = 2,641 %

2. X₂ = 2,589 %

3. X₃ = 2,647 %

Simpangan kadar 1 dan 2

kadar rata-rata = ₁ ₂

=

= 2,615 %

% Simpangan kadar = ₁

x 100%

=

x 100%

=

x 100%

= 0,99%

31

Simpangan kadar 2 dan 3

kadar rata-rata =

=

= 2,618 %

% Simpangan kadar =

x 100%

=

x 100%

=

x 100%

= 1,10 %

Simpangan kadar 3 dan 1

kadar rata-rata =

=

= 2,644 %

% Simpangan kadar =

x 100%

=

x 100%

=

x 100%

= 0,11 %

Kadar sebenarnya diperoleh dari kadar rata-rata dengan simpangan kadar terkecil

yaitu 2,644 %

32

LAMPIRAN V

DAFTAR KADAR KALSIUM

Tabel 5.1 Daftar Sampel Kode A

Kode

sampel

Kadar

Kalsium (%)

Kadar

rata-rata

(%)

Standart

deviasi

Standart

devisi

terkecil

Kadar

sebenarnya

Ket

A1 2,043 % 2,1025 % 2,82 %

0.39%

2,050%

MS A2 2,162 % 2,11 % 2,46%

A3 2,058 % 2,050% 0,39%

Tabel 5.2 Daftar Sampel Kode B

Kode

sampel

Kadar

Kalsium (%)

Kadar

rata-rata

(%)

Standart

deviasi

Standart

devisi

terkecil

Kadar

sebenarnya

Ket

B1 2,5206 % 2,5108 % 0,390 %

0.390%

2,5108 %

MS B2 2,501 % 2,56 % 2,30%

B3 2,619 % 2,57 % 1,90 %

Tabel 5.3 Daftar Sampel Kode C

Kode

sampel

Kadar

Kalsium (%)

Kadar

rata-rata

(%)

Standart

deviasi

Standart

devisi

terkecil

Kadar

sebenarnya

Ket

C1 2,641% 2,615% 0,99 %

0,11%

2,644 %

MS C2 2,589 % 2,618 % 1,10 %

C3 2,647 % 2,644 % 0,11%

Keterangan:

MS = Memenuhi Syarat

TMS = Tidak Memenuhi Syarat

33

LAMPIRAN VI

DAFTAR GAMBAR

Peralatan penelitian Sampel Ditimbang

Sampel setelah ditimbang Sampel dilarutkan dengan air hangat

Sampel dimasukan dalam labu Sampel di ad-kan dengan akuades

34

Sampel di pipet 50ml ke dalam Erlenmeyer

Sampel setelah di beri NaOH 1 N dan indikator Mureksid

Sampel setelah di titrasi dengan larutan Na2EDTA 0,01 M