Pembuatan larutan standar urea

  Lampiran 1 Pembuatan larutan yang digunakan dalam penelitian

   Membuat larutan MO 0,0006 M Data yang ada BM = 327,34 gr/mol

  10000

  M =

  1000

  0,0006 =

  327,34 50

  G = 0,00982 gram

  3

   Membuat larutan KbrO 0,001M Data yang ada BM = 167,01 gr/mol

  10000

  M =

  1000

  0,001 =

  167,01 50

  G = 0,00835 gram  Membuat larutan HCl 2.33 Data yang ada: BM = 36,01 gr/mol

  ρ = 1,19 kg/L

  % 10

  M =

  37% 1,19 1000

  =

  36,01

  = 12,06 M

  1 1

  V2 =

  2 250 2,33

  =

  12,06

  = 9,66 ml  Membuat larutan urea 0,003M Data yang ada BM = 60,07 gr/mol

  10000

  M =

  1000

  0,003 =

  60,07 50

  G = 0,0090 gram

  Pembuatan larutan standar urea

   Konsentrasi urea 0 µg/ml (Tanpa Urea)  Konsentrasi urea 40 µg/ml 50 ml x 40 µg/ml = 2000 µgram

  = 2 mgram = 0,002 gram

   Konsentrasi urea 80 µg/ml 50 ml x 80 µg/ml = 4000 µgram = 4 mgram = 0,004 gram

   Konsentrasi urea 120 µg/ml 50 ml x120 µg/ml= 6000 µgram = 6 mgram = 0,006 gram

   Konsentrasi urea 200 µg/ml 50 ml x200 µg/ml= 10000 µgram = 10 mgram = 0,01 gram

Lampiran 2 Data – data bilangan iod pada karbon aktif

  2 S

  /gr karbon Konsentrasi surfaktan 3 mmol/L Volume

  Na

  2 S

  2 O

  3

  (1) Volume

  Na

  2 O

  = 749.0056262 mgI

  3

  (2) Sampel 1 4,4 4,2 Sampel 2 4 3,9

  Rata - rata 4,2

  4 Bilangan iod (1) = (10−

  4,2 0,102 0,107

  ) 12,693 5 0,5

  = 761.1054953 mgI

  2 /gr karbon

  

2

   konsentrasi surfaktan CPC terhadap bilangan iod Konsentrasi surfaktan 1 mmol/L Volume

  Na

  (2) Sampel 1 4,6 4,4 Sampel 2 4,4 4,2

  2 S

  2 O

  3

  (1) Volume

  Na

  2 S

  2 O

  3

  

Rata - rata 4,5 4,3

  4,3 0,102 0,107

  Bilangan iod (1) =

  (10−

  4,5 0,102 0,107

  ) 12,693 5 0,5

  = 724.8058879 mgI

  2 /gr karbon

  Bilangan iod (2) =

  (10−

  ) 12,693 5 0,5 Bilangan iod (2) =

  (10−

  2 S

  = 821.6048411 mgI

  

2

  /gr karbon Konsentrasi surfaktan 7 mmol/L Volume

  Na

  2 S

  2 O

  3

  (1) Volume

  Na

  2 O

  3,7 0,102 0,107

  3

  (2) Sampel 1 4,9 4,8 Sampel 2 4,7 4,6

  

Rata - rata 4,8 4,7

  Bilangan iod (1) =

  (10−

  4,8 0,102 0,107

  ) 12,693 5 0,5

  = 688.5062804 mgI

  

2

  ) 12,693 5 0,5

  (10−

  4 0,102 0,107

  2 S

  ) 12,693 5 0,5

  = 785.3052336 mgI

  2 /gr karbon

  Konsentrasi surfaktan 5 mmol/L Volume Na

  2 S

  2 O

  3

  (1) Volume

  Na

  2 O

  /gr karbon Bilangan iod (2) =

  3

  (2) Sampel 1 3,9 3,8 Sampel 2 3,7 3,6

  

Rata - rata 3,8 3,7

  Bilangan iod (1) =

  (10−

  3,8 0,102 0,107

  ) 12,693 5 0,5

  = 809.504972 mgI

  2

  /gr karbon Bilangan iod (2) =

  (10−

  4,7 0,102 0,107

  ) 12,693 5 0,5

  = 700.6048411 mgI

  2 /gr karbon

  Konsentrasi surfaktan 9 mmol/L Volume Na

  2 S

  2 O

  3

  (1) Volume

  Na

  2 S

  2 O

  3

  (2) Sampel 1 3,6 3,4 Sampel 2 3,2 3,0

Rata – rata 3,4 3,2

  (10−

  (1) Volume

  /gr karbon

  

2

  = 894.2040561 mgI

  ) 12,693 5 0,5

  3,1 0,102 0,107

  3 Bilangan iod (1) = (10−

  3 Rata - rata 3,1

  3 Sampel 2 3,1

  (2) Sampel 1 3,1

  3

  2 O

  2 S

  Na

  3

  3,4 0,102 0,107

  2 O

  2 S

  Na

  /gr karbon Konsentrasi surfaktan 11 mmol/L Volume

  

2

  = 906.3039252 mgI

  ) 12,693 5 0,5

  Bilangan iod (1) =

  (10−

  /gr karbon Bilangan iod (2) =

  

2

  = 857.9044486 mgI

  ) 12,693 5 0,5

  3,2 0,102 0,107 Bilangan iod (2) =

  (10−

  Na

  = 966.803271 mgI

  2

  /gr karbon Konsentrasi surfaktan 15 mmol/L Volume

  Na

  2 S

  2 O

  3

  (1) Volume

  2 S

  2,5 0,1 0,1

  2 O

  3

  (2) Sampel 1 1,9 1,7 Sampel 2 1,9 1,7

  

Rata - rata 1,9 1,7

  Bilangan iod (1) =

  (10−

  1,9 0,1 0,1

  ) 12,693 5 0,5

  = 1039.402486 mgI

  ) 12,693 5 0,5

  (10−

  3 0,102 0,107

  2 S

  ) 12,693 5 0,5

  = 906.3039252 mg I

  2 /gr karbon

  Konsentrasi surfaktan 13 mmol/L Volume Na

  2 S

  2 O

  3

  (1) Volume

  Na

  2 O

  Bilangan iod (2) =

  3

  (2) Sampel 1 2,7 2,5 Sampel 2 2,3 2,5

  

Rata - rata 2,6 2,5

  Bilangan iod (1) =

  (10−

  2,6 0,1 0,1

  ) 12,693 5 0,5

  = 954.7034019 mgI

  2 /gr karbon

  2 /gr karbon Bilangan iod (2) =

  (10−

  (1) Volume

  = 1015.202748 mgI

  

2

  /gr karbon  Faktor 2 waktu gelombang ultrasonik

   Waktu gelombang ultrasonik 2 menit Volume

  Na

  2 S

  2 O

  3

  Na

  2,1 0,1 0,1

  2 S

  2 O

  3

  (2) Sampel 1 4,5 4,4 Sampel 2 4,5 4,2

  

Rata - rata 4,5 4,3

  Bilangan iod (1) =

  (10−

  4,5 0,102 0,107

  ) 12,693 5 0,5

  (10−

  1,7 0,1 0,1

  Na

  ) 12,693 5 0,5

  = 1063.602224 mgI

  2 /gr karbon

  Konsentrasi surfaktan 17 mmol/L Volume Na

  2 S

  2 O

  3

  (1) Volume

  2 S

  /gr karbon Bilangan iod (2) =

  2 O

  3

  (2) Sampel 1 2,3 2,2 Sampel 2 2,3

  2 Rata - rata 2,3 2,1 Bilangan iod (1) =

  (10−

  2,3 0,1 0,1

  ) 12,693 5 0,5

  = 991.0030093 mgI

  

2

  ) 12,693 5 0,5

  = 724.8058879 mgI

  3

  (10−

  8,7 0,102 0,107

  ) 12,693 5 0,5

  = 761.1054953 mgI

  2 /gr karbon

   Waktu gelombang ultrasonik 8 menit Volume

  Na

  2 S

  2 O

  (1) Volume

  2 /gr karbon

  Na

  2 S

  2 O

  3

  (2) Sampel 1 3,9 4,0 Sampel 2 3,9 3,6

  

Rata - rata 3,9 3,8

  Bilangan iod (1) =

  (10−

  3,9 0,102 0,107

  Bilangan iod (2) =

  = 773.2053645 mgI

  

2

  2 O

  /gr karbon Bilangan iod (2) =

  (10−

  4,3 0,102 0,107

  ) 12,693 5 0,5

  = 749.0056262 mg I

  2 /gr karbon

   Waktu gelombang ultrasonik 5 menit Volume

  Na

  2 S

  3

  ) 12,693 5 0,5

  (1) Volume

  Na

  2 S

  2 O

  3

  (2) Sampel 1 4,3 4,3 Sampel 2 3,9 4,1

  

Rata - rata 4,1 4,2

  Bilangan iod (1) =

  (10−

  4,1 0,102 0,107

  ) 12,693 5 0,5

  = 797.4051028 mgI

  (1) Volume

  4,7 0,102 0,107

  ) 12,693 5 0,5

  = 700.6061496 mgI

  

2

  /gr karbon  Waktu gelombang ultrasonik 45 menit

  Volume Na

  2 S

  2 O

  3

  Na

  Bilangan iod (2) =

  2 S

  2 O

  3

  (2) Sampel 1 5,1

  5 Sampel 2 5,1

  5 Rata - rata 5,1

  5 Bilangan iod (1) = (10−

  5,1 0,021 0,107

  ) 12,693 5 0,5

  = 652.2066729 mgI

  (10−

  2 /gr karbon

  

2

  3

  /gr karbon Bilangan iod (2) =

  (10−

  3,8 0,102 0,107

  ) 12,693 5 0,5

  = 809.504972 mgI

  2 /gr karbon

   Waktu gelombang ultrasonik 23 menit Volume

  Na

  2 S

  2 O

  (1) Volume

  = 724.8058879 mgI

  Na

  2 S

  2 O

  3

  (2) Sampel 1 4,5 4,7 Sampel 2 4,5 4,7

  

Rata - rata 4,5 4,7

  Bilangan iod (1) =

  (10−

  4,5 0,102 0,107

  ) 12,693 5 0,5

  2 /gr karbon

  5 0,102

  (10− ) 12,693 5

  0,107 Bilangan iod (2) =

  0,5

  = 664.3065421 mgI

  2 /gr karbon

  Volume Volume  Waktu gelombang

  Na

  2 S

  2 O

  3 Na

  2 S

  2 O

  3

  ultrasonik 67 menit (1) (2)

  Sampel 1 5,3 5,3 Sampel 2 5,3 5,3

  

Rata - rata 5,3 5,3

  5,3 0,102

  (10− ) 12,693 5

  0,107 Bilangan iod (1) =

  0,5

  

2

  = 640.1068037 mgI /gr karbon 5,3 0,102

  (10− ) 12,693 5

  0,107 Bilangan iod (2) =

  0,5

  

2

  = 640.1068037 mgI /gr karbon

  Lampiran 3

kap

  Perhitungan kapasitas penyerapan (Q )

   Faktor 1 Konsentrasi surfaktan 0 mmol/L W sebelum absorbansi urea – W sesudah absorbansi urea

  Q kap (1) =

  30,035−7,862

  =

  0,3

  = 73,91 mgram/gram W sebelum absorbansi urea – W sesudah absorbansi urea

  Q kap (2) =

  30,035−7,874

  =

  0,3

  = 73,87 mgram/gram Konsentrasi surfaktan 1 mmol/L

  W sebelum absorbansi urea – W sesudah absorbansi urea Q kap (1) =

  30,035−7.007

  =

  0,3

  = 76,76 mgram/gram W sebelum absorbansi urea – W sesudah absorbansi urea

  Q kap (2) =

  30,035−7.004

  =

  0,3

  = 76,77 mgram/gram Konsentrasi surfaktan 3 mmol/L

  W sebelum absorbansi urea – W sesudah absorbansi urea

  kap

  Q (1) =

  30,035−6,605

  =

  0,3

  = 78,10 mgram/gram W sebelum absorbansi urea – W sesudah absorbansi urea

  Q kap (2) =

  7,5−6.56

  =

  0,3

  = 78,25 mgram/gram Konsentrasi surfaktan 5 mmol/L

  W sebelum absorbansi urea – W sesudah absorbansi urea Q kap (1) =

  30,035−5,933

  =

  0,3

  = 80,34 mgram/gram W sebelum absorbansi urea – W sesudah absorbansi urea

  Q kap (2) =

  30,035−5.825

  =

  0,3

  = 80,70 mgram/gram Konsentrasi surfaktan 7 mmol/L

  W sebelum absorbansi urea – W sesudah absorbansi urea Q kap (1) =

  30,035−5,36

  =

  0,3

  = 82,25 mgram/gram

  W sebelum absorbansi urea – W sesudah absorbansi urea

  kap

  Q (2) =

  30,035−5,3

  =

  0,3

  = 82,45 mgram/gram Konsentrasi surfaktan 9 mmol/L

  W sebelum absorbansi urea – W sesudah absorbansi urea

  30,035−4,733

  =

  0,3

  = 84,34 mgram/gram W sebelum absorbansi urea – W sesudah absorbansi urea

  Q kap (2) =

  30,035−4,736

  =

  0,3

  = 84,33 mgram/gram Konsentrasi surfaktan 11 mmol/L

  W sebelum absorbansi urea – W sesudah absorbansi urea Q kap (1) =

  30,035−4,49

  =

  0,3

  = 85,15 mgram/gram W sebelum absorbansi urea – W sesudah absorbansi urea

  Q kap (2) =

  30,035−4,487

  =

  0,3

  = 85,16 mgram/gram Konsentrasi surfaktan 13 mmol/L W sebelum absorbansi urea – W sesudah absorbansi urea

  Q kap (1) =

  30,035−4,037

  =

  0,3

  = 86,66 mgram/gram W sebelum absorbansi urea – W sesudah absorbansi urea

  30,035−3,785

  =

  0,3

  = 87,50 mgram/gram Konsentrasi surfaktan 15 mmol/L

  W sebelum absorbansi urea – W sesudah absorbansi urea Q kap (1) =

  30,035−3,032

  =

  0,3

  = 90,01 mgram/gram W sebelum absorbansi urea – W sesudah absorbansi urea

  Q kap (2) =

  30,035−2,99

  =

  0,3

  = 90,15 mgram/gram Konsentrasi surfaktan 17 mmol/L

  W sebelum absorbansi urea – W sesudah absorbansi urea

  kap

  Q (1) =

  30,035−3,602

  =

  0,3

  = 88,11 mgram/gram W sebelum absorbansi urea – W sesudah absorbansi urea

  Q kap (2) =

  30,035−3.566

  =

  0,3

  = 88,23 mgram/gram

   Faktor 2 Waktu gelombang ultrasonik 2 menit W sebelum absorbansi urea – W sesudah absorbansi urea

  kap

  Q (1) =

  30,035−6,05

  =

  0,3

  = 79,95 mgram/gram W sebelum absorbansi urea – W sesudah absorbansi urea

  kap

  Q (2) =

  30,035−6,095

  =

  0,3

  = 79,80 mgram/gram Waktu gelombang ultrasonik 5 menit

  W sebelum absorbansi urea – W sesudah absorbansi urea Q kap (1) =

  30,035−5,78

  =

  0,3

  = 80,85 mgram/gram W sebelum absorbansi urea – W sesudah absorbansi urea

  kap

  Q (2) =

  30,035−5,735

  =

  0,3

  = 81.00 mgram/gram Waktu gelombang ultrasonik 8 menit

  W sebelum absorbansi urea – W sesudah absorbansi urea Q kap (1) =

  30,035−5,273

  =

  0,3

  = 82.54 mgram/gram W sebelum absorbansi urea – W sesudah absorbansi urea

  Q kap (2) =

  30,035−5,282

  =

  0,3

  = 82,51 mgram/gram Waktu gelombang ultrasonik 23 menit

  W sebelum absorbansi urea – W sesudah absorbansi urea Q kap (1) =

  30,035−7,487

  =

  0,3

  = 75,16 mgram/gram W sebelum absorbansi urea – W sesudah absorbansi urea

  Q kap (2) =

  30,035−7,343

  =

  0,3

  = 75,64 mgram/gram Waktu gelombang ultrasonik 45 menit

  W sebelum absorbansi urea – W sesudah absorbansi urea Q kap (1) =

  30,035−6,497

  =

  0,3

  = 78,46 mgram/gram W sebelum absorbansi urea – W sesudah absorbansi urea

  Q kap (2) =

  30,035−6,518

  =

  0,3

  = 78,39 mgram/gram Waktu gelombang ultrasonik 67 menit

  W sebelum absorbansi urea – W sesudah absorbansi urea Q kap (1) =

  30,035−7.169 0,3

  = 76,22 mgram/gram W sebelum absorbansi urea – W sesudah absorbansi urea

  Q kap (2) =

  30,035−7,187

  =

  0,3 = 76,16 mgram/gram

  Lampiran 4 Data Deskriptif Konsentrasi Surfaktan

Descriptives

  bilangan_iod N Mean Std. Deviation Std. Error 95% Confidence Interval for Mean Minimum Maximum

  Lower Bound Upper Bound ,00 2 573,000000000 8,4852813742 6,0000000000 496,762771583 649,237228417 567,0000000 579,0000000 1,00 2 736,500000000 17,6776695297 12,5000000000 577,672440798 895,327559202 724,0000000 749,0000000 3,00 2 773,000000000 16,9705627485 12,0000000000 620,525543166 925,474456834 761,0000000 785,0000000 5,00 2 815,000000000 8,4852813742 6,0000000000 738,762771583 891,237228417 809,0000000 821,0000000 7,00 2 694,000000000 8,4852813742 6,0000000000 617,762771583 770,237228417 688,0000000 700,0000000 9,00 2 869,500000000 17,6776695297 12,5000000000 710,672440798 1028,327559202 857,0000000 882,0000000 11,00 2 900,000000000 8,4852813742 6,0000000000 823,762771583 976,237228417 894,0000000 906,0000000 13,00 2 960,000000000 8,4852813742 6,0000000000 883,762771583 1036,237228417 954,0000000 966,0000000 15,00 2 1051,000000000 16,9705627485 12,0000000000 898,525543166 1203,474456834 1039,0000000 1063,0000000 17,00 2 1003,000000000 16,9705627485 12,0000000000 850,525543166 1155,474456834 991,0000000 1015,0000000 Total 20 837,500000000 144,8242128637 32,3836784751 769,720181981 905,279818019 567,0000000 1063,0000000

  Descriptives

  kapasitas_adsorpsi N Mean Std. Deviation Std. Error 95% Confidence Interval for Mean Minimum Maximum

  Lower Bound Upper Bound ,00 2 73,8900 ,02828 ,02000 73,6359 74,1441 73,87 73,91 1,00 2 76,7650 ,00707 ,00500 76,7015 76,8285 76,76 76,77 3,00 2 78,1750 ,10607 ,07500 77,2220 79,1280 78,10 78,25 5,00 2 80,5200 ,25456 ,18000 78,2329 82,8071 80,34 80,70 7,00 2 82,3500 ,14142 ,10000 81,0794 83,6206 82,25 82,45 9,00 2 84,3350 ,00707 ,00500 84,2715 84,3985 84,33 84,34 11,00 2 85,1550 ,00707 ,00500 85,0915 85,2185 85,15 85,16 13,00 2 87,0800 ,59397 ,42000 81,7434 92,4166 86,66 87,50 15,00 2 90,0800 ,09899 ,07000 89,1906 90,9694 90,01 90,15 17,00 2 88,1700 ,08485 ,06000 87,4076 88,9324 88,11 88,23 Total 20 82,6520 5,13677 1,14862 80,2479 85,0561 73,87 90,15

  Data Deskriptif Waktu Gelombang Ultrasonik

Descriptives

  Bilangan_iod N Mean Std. Deviation Std. Error 95% Confidence Interval for Mean Minimum Maximum

  Lower Bound Upper Bound 2,00 2 736,90575705 17,111799055 12,099869150 583,16234235 890,64917175 724,805888 749,005626 5,00 2 767,15542990 8,555899563 6,049934600 690,28372223 844,02713757 761,105495 773,205365 8,00 2 803,45503740 8,555899563 6,049934600 726,58332973 880,32674507 797,405103 809,504972 23,00 2 712,70601870 17,111799126 12,099869200 558,96260336 866,44943404 700,606150 724,805888 45,00 2 658,25660750 8,555899563 6,049934600 581,38489983 735,12831517 652,206673 664,306542 67,00 2 640,10680370

  0E-9

  0E-9 640,10680370 640,10680370 640,106804 640,106804 Total 12 719,76427571 60,490178545 17,462010433 681,33064988 758,19790154 640,106804 809,504972

  Descriptives

  kapasitas N Mean Std. Deviation Std. Error 95% Confidence Interval for Mean Minimum Maximum

  Lower Bound Upper Bound 2,0 2 79,880 ,1019 ,0720 78,964 80,795 79,8 80,0 5,0 2 81,428 ,6051 ,4278 75,992 86,864 81,0 81,9 8,0 2 82,528 ,0246 ,0174 82,307 82,749 82,5 82,5 23,0 2 75,408 ,3382 ,2391 72,369 78,447 75,2 75,6 45,0 2 78,428 ,0451 ,0319 78,023 78,834 78,4 78,5 67,0 2 76,194 ,0400 ,0282 75,835 76,553 76,2 76,2 Total 12 78,978 2,7124 ,7830 77,254 80,701 75,2 82,5

  Lampiran 5 Data ANOVA Konsentrasi Surfaktan dan Waktu irradiasi ANOVA

  bilangan_iod Sum of Squares df Mean Square F Sig.

  Between Groups 396658,000 9 44073,111 238,362 ,000 Within Groups 1849,000 10 184,900 Total 398507,000

  19 ANOVA kapasitas_adsorpsi Sum of Squares df Mean Square F Sig. Between Groups 500,876 9 55,653 1192,220 ,000 Within Groups ,467 10 ,047 Total 501,342

  19 Data ANOVA Waktu irradiasi Ultrasonik

  ANOVA

  Bilangan_iod Sum of Squares df Mean Square F Sig.

  Between Groups 39444,441 5 7888,888 58,782 ,000 Within Groups 805,238 6 134,206 Total 40249,679

  11 ANOVA kapasitas Sum of Squares df Mean Square F Sig. Between Groups 80,433 5 16,087 194,944 ,000 Within Groups ,495 6 ,083 Total 80,928

  11

  Lampiran 6

kapasitas_adsorpsi

  9

  1

  2

  3

  4

  5

  6

  7

  8

  10 ,0 2 573,0000 7,0 2 694,0000 1,0 2 736,5000 3,0 2 773,0000 5,0 2 815,0000 9,0

  Duncan konsent rasi_su rfaktan

  2 869,5000

  11,0

  2 900,0000

  13,0

  2 960,0000

  17,0

  2 1003,000

  15,0

  2 1051,0000

  N Subset for alpha = 0.05

   Post Hoc Test Konsentrasi Surfaktan bilangan_iod

  Duncan konsentrasi_surfakta n

  9

  N Subset for alpha = 0.05

  1

  2

  3

  4

  5

  6

  7

  8

  10 ,00 2 73,8900 1,00 2 76,7650 3,00 2 78,1750 5,00 2 80,5200 7,00 2 82,3500 9,00

  Sig. 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 Means for groups in homogeneous subsets are displayed.

  2 84,3350

  11,00

  2 85,1550

  13,00

  2 87,0800

  17,00

  2 88,1700

  15,00

  2 90,0800

  Sig. 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 Means for groups in homogeneous subsets are displayed.

  Post Hoc Test Waktu Irradiasi Ultrasonik

bilangan_iod

  Duncan ultra N Subset for alpha = 0.05

  1

  2

  3

  4

  5

  6 23,0 2 561,4577 67,0 2 603,8072 45,0 2 658,2566 2,0 2 736,9058 5,0

  2 767,1554

  8,0

  2 803,4550

  Sig. 1,000 1,000 1,000 1,000 1,000 1,000 Means for groups in homogeneous subsets are displayed.

  

kapasitas

  Duncan ultra N Subset for alpha = 0.05

  1

  2

  3

  4

  5

  6 23,0 2 75,408 67,0 2 76,194 45,0 2 78,428 2,0 2 79,880 5,0

  2 81,428

  8,0

  2 82,528

  Sig. 1,000 1,000 1,000 1,000 1,000 1,000 Means for groups in homogeneous subsets are displayed.

  Lampiran 7 Foto Penelitian

  Screening karbon Ultrasonic Homogenizer

  Karbon setelah di Ultrasonik Spektrofotometer UV-Vis

  Oven Larutan bilangan iod sebelum dititrasi Sebelum ditetesi indikator kanji

  Setelah ditetesi indikator kanji Setelah dititasi Analisis spektro cairan cpc

  Analisis FTIR Analisis spekro cairan urea

  Lampiran 8

  Prosedur pembuatan larutan  Membuat larutan MO (Metyl Orange) 0,0006 M Timbang 0,00982 gram metyl orange, masukan kedalam beker gelas dan ditambahkan aquades 20 ml, aduk hingga padatan metyl orange terlarut semua, masukan kedalam labu ukur 50 ml, kemudian tambahkan aquades hingga batas volume yang tertera di labu ukur dan kocok hingga tercampur semua

  3 0,001 M

   Membuat larutan KBrO Timbang 0,00835 gram KbrO

  3 , masukan kedalam beker gelas dan ditambahkan

  aquades 20 ml, aduk hingga padatan KbrO

  3 terlarut semua, masukan kedalam

  labu ukur 50 ml, kemudian tambahkan aquades hingga batas volume yang tertera di labu ukur dan kocok hingga tercampur semua  Membuat larutan HCl 2,33 M Ambil asam nitrat 9,7 ml menggunakan pipet volume, masukan kedalam labu ukur 50 ml, tambahkan aquades hingga batas volume yang tertera di labu ukur, kemudian kocok hingga tercampur semua  Membuat larutan urea 0,003 M Timbang 0,0090 gram urea, masukan kedalam beker gelas dan ditambahkan aquades 20 ml, aduk hingga padatan urea terlarut semua, masukan kedalam labu ukur 50 ml, kemudian tambahkan aquades hingga batas volume yang tertera di labu ukur dan kocok hingga tercampur semua