LAMPIRAN 1TUGAS

1. Buat Kurva titrasi, yaitu hubungan Lkor dengan volume titran NaOH. Hitung volume NaOH pada titik ekivalen!Jawab:

0 5 10 15 20 250

0.1

0.2

0.3

0.4

0.5

0.6

f(x) = 0.0067667460766316 x + 0.222397324763851R² = 0.040917727693859

Lkor vs ml NaOH

Lkor vs ml NaOHLinear (Lkor vs ml NaOH)

Grafik 1. Lkor vs ml NaOH

Keterangan: Lkor = 1/R x VkorVkor = (V0+V)/ V0

V0 = volume awalV = volume penambahan

2. Tabelkan hasil pengukuran saudara!

ml NaOH V V0+V Vkor=

(V0+V)/ V0R(ohm) L=1/R Lkor=

L*Vkor

1 1 111 1,009090909 4,350,229885

10,23197492

2

1 2 112 1,018181818 3,77 0,2652520,27007475

3

1 3 113 1,027272727 3,50,285714

30,29350649

4

1 4 114 1,036363636 2,980,335570

50,34777303

2

1 5 115 1,045454545 2,540,393700

80,41159627

8

0,5 5,5 115,5 1,05 2,260,442477

9 0,46460177

0,5 6 116 1,054545455 2,060,485436

90,51191526

9

0,5 6,5 116,5 1,059090909 18,790,053219

80,05636460

4

0,5 7 117 1,063636364 16,50,060606

1 0,06446281

0,5 7,5 117,5 1,068181818 150,066666

70,07121212

1

0,5 8 118 1,072727273 13,720,072886

30,07818711

9

0,5 8,5 118,5 1,077272727 14,1 0,0709220,07640232

1

0,5 9 119 1,081818182 14,90,067114

10,07260524

7

0,5 9,5 119,5 1,086363636 16,040,062344

10,06772840

6

0,5 10 120 1,090909091 17,090,058513

80,06383318

3

0,5 10,5 120,5 1,095454545 17,940,055741

40,06106212

6

0,5 11 121 1,1 1,980,505050

50,55555555

6

0,5 11,5 121,5 1,104545455 2,070,483091

80,53359683

8

0,5 12 122 1,109090909 2,230,448430

50,49735018

3

0,5 12,5 122,5 1,113636364 2,290,436681

20,48630408

90,5 13 123 1,118181818 2,48 0,403225 0,45087976

8 5

0,5 13,5 123,5 1,122727273 2,590,386100

40,43348543

3

0,5 14 124 1,127272727 2,780,359712

20,40549378

7

0,5 14,5 124,5 1,131818182 2,90,344827

60,39028213

2

0,5 15 125 1,136363636 30,333333

30,37878787

9

1 16 126 1,145454545 3,350,298507

5 0,34192673

1 17 127 1,154545455 3,690,271002

70,31288494

7

1 18 128 1,163636364 4,11 0,2433090,28312320

3

1 19 129 1,172727273 4,08 0,2450980,28743315

5

1 20 130 1,181818182 4,390,227790

40,26920687

5

LAMPIRAN 2PERTANYAAN

1. Hitunglah (untuk percobaan c):a. Konstanta sel “K” dengan menggunakan hantaran KCl 0,1 N

K= Ls x RKCl

K= (1/ RKCl) x RKCl

K= 1

b. Hitung Ls larutan dan aquades1.)Ls KCl 0,1 N = L KCl 0,1 N karena konstanta sel “K”= 1

= 1/ RKCl

= 1/24,2 ohm= 0,0413 mho/cm

2) Ls KCl 0,01 N = L KCl 0,01 N= 1/ RKCl

= 1/4,10 ohm= 0,2439 mho/cm

3) Ls AgNO3 0,01 N = L AgNO3 0,01 N = 1/ RAgNO3

= 1/4,62 ohm = 0,21645 mho/cm

4) Ls AgCl = L AgCl= 1/RAgCl

= 1/ 109,9 ohm= 0,0091 ohm/cm

5)Ls Aquades = L Aquades= 1/Raquades

= 1/74,1 ohm= 0,013495 mho/cm

c. Hitung Lion masing-masing larutan1) Lion KCl 0,1 N = Ls KCl 0,1 N – Laquades

= 0,0413 mho/cm - 0,013495 mho/cm= 0,027805 mho/cm

2) Lion KCl 0,01 N= Ls KCl 0,01 N – Laquades

= 0,2439 mho/cm - 0,013495 mho/cm= 0,230405 mho/cm

3) Lion AgNO3 0,01 N= Ls AgNO3 0,01 N– Laquades= 0,21645 mho/cm - 0,013495 mho/cm= 0,202955 mho/cm