1) Penentuan titik akhir reaksi netralisasi dengan indikatora. H3PO4 + NaOH

Parameterindikator

Metil Merah Fenolftaleinx1 x2 x̄� ± sx̄� x1 x2 x̄� ± sx̄�

Volume (ml)

5,200 5,100 5,150 5,150± 0.071 9,300 9,400 9,350 9,350 ± 0.071

pH 5,580 5,800 5,690 5,690 ± 0.155 8,670 8,550 8,610 8.610± 0.850E 60,000 86,200 73,100 73,100 ± 10,465 -85,700 -86,200 -85,950 (-85,950) ± 0.354

b. Na3PO4 + HCl

Parameterindikator

Metil Merah Fenolftaleinx1 x2 x̄� ± sx̄� x1 x2 x̄� ± sx̄�

Volume (ml)

16,400 16,500 16,450 16,450 ± 0.071 10,200 9,000 9,600 9,600 ± 0.849

pH 3,930 4,910 4,420 4,420 ± 0.693 8,320 8,190 8,255 8.255 ± 0.092E 144,500 95,300 119,900 119,900± 34,790 -74,200 -67,800 -71,000 (-71,000) ± 4.525

2) Penentuan Titik Ekuivalen Reaksi netralisasi secara Potensiometria. H3PO4 + NaOH

Volume (mL) pH1 pH2 pHr E1 (mV) E2 (mV) Er (mV)0,000 1,150 1,060 1,105 282,700 287,600 285,1501,000 1,320 1,290 1,305 274,000 276,100 275,0502,000 1,590 1,590 1,590 260,700 261,500 261,1003,000 1,990 2,070 2,030 240,500 237,100 238,8004,000 3,170 3,160 3,165 182,000 181,600 181,8005,000 5,150 5,120 5,135 83,500 85,000 84,2506,000 5,620 5,600 5,610 60,000 58,700 59,3507,000 5,950 5,920 5,935 43,500 43,000 43,2508,000 6,200 6,270 6,235 31,500 27,500 29,5009,000 6,440 6,450 6,445 19,700 20,100 19,900

10,000 6,670 6,750 6,710 7,700 3,500 5,60011,000 6,940 6,960 6,950 -5,500 -6,100 -5,80012,000 7,250 7,140 7,195 -4,300 -15,900 -10,10013,000 7,800 7,850 7,825 -48,600 -51,800 -50,20014,000 9,290 9,280 9,285 -123,200 -120,000 -121,60015,000 10,400 10,420 10,410 -178,500 -128,300 -153,40016,000 10,950 10,890 10,920 -206,000 -200,700 -203,35017,000 11,430 11,420 11,425 -229,800 -232,100 -230,95018,000 11,700 11,850 11,775 -243,900 -250,500 -247,20019,000 11,930 11,970 11,950 -255,400 -257,200 -256,30020,000 12,110 12,200 12,155 -264,400 -268,500 -266,450

V (mL) pHr V' (mL) ΔpHr/ΔV V" (mL) Δ(ΔpHr/ΔV)

0,000 1,105 0,5 0,2 1,000 0,08501,000 1,305 1,5 0,285 2,000 0,15502,000 1,590 2,5 0,44 3,000 0,69503,000 2,030 3,5 1,135 4,000 0,83504,000 3,165 4,5 1,97 5,000 -1,49505,000 5,135 5,5 0,475 6,000 -0,15006,000 5,610 6,5 0,325 7,000 -0,02507,000 5,935 7,5 0,3 8,000 -0,09008,000 6,235 8,5 0,21 9,000 0,05509,000 6,445 9,5 0,265 10,000 -0,0250

10,000 6,710 10,5 0,24 11,000 0,005011,000 6,950 11,5 0,245 12,000 0,385012,000 7,195 12,5 0,63 13,000 0,830013,000 7,825 13,5 1,46 14,000 -0,335014,000 9,285 14,5 1,125 15,000 -0,615015,000 10,410 15,5 0,51 16,000 -0,005016,000 10,920 16,5 0,505 17,000 -0,155017,000 11,425 17,5 0,35 18,000 -0,175018,000 11,775 18,5 0,175 19,000 0,030019,000 11,950 19,5 0,205 14,750 -0,042420,000 12,155 10 0,60775 5,000 0,0608

V (mL) Er V' (mL) ΔEr/ΔV V" (mL) Δ(ΔEr/ΔV)0,000 285,150 0,500 10,100 1,000 3,4501,000 275,050 1,500 13,550 2,000 9,1502,000 261,500 2,500 22,700 3,000 34,3003,000 238,800 3,500 57,000 4,000 40,5504,000 181,800 4,500 97,550 5,000 -72,6505,000 84,250 5,500 24,900 6,000 -8,8006,000 59,350 6,500 16,100 7,000 -2,3507,000 43,250 7,500 13,750 8,000 -4,1508,000 29,500 8,500 9,600 9,000 4,7009,000 19,900 9,500 14,300 10,000 -2,900

10,000 5,600 10,500 11,400 11,000 -7,10011,000 -5,800 11,500 4,300 12,000 35,80012,000 -10,100 12,500 40,100 13,000 31,30013,000 -50,200 13,500 71,400 14,000 -39,60014,000 -121,600 14,500 31,800 15,000 18,15015,000 -153,400 15,500 49,950 16,000 -22,35016,000 -203,350 16,500 27,600 17,000 -11,35017,000 -230,950 17,500 16,250 18,000 -7,15018,000 -247,200 18,500 9,100 19,000 1,05019,000 -256,300 19,500 10,150 14,750 -0,33420,000 -266,450 10,000 13,323 5,000 1,332

∆(∆pHr /∆V (+) ∆(∆pHr /∆V (-) ∆(∆pHr /∆V (+)-∆(∆pHr /∆V (-) v koreksi0,835 -1,495 2,33 1,5825

0,83 -0,615 1,445 1,1375

v(+) v potensiometri4 5,5825

13 14,1375

b. Na3PO4 + HCl

Volume (mL) pH1 pH2 pHr E1 (mV) E2 (mV) Er (mV)0,000 12,180 12,140 12,160 -299,600 -297,800 -298,7001,000 12,120 12,050 12,085 -296,100 -292,200 -294,1502,000 12,000 11,920 11,960 -289,500 -285,400 -287,4503,000 11,890 11,810 11,850 -283,000 -279,500 -281,2504,000 11,770 11,670 11,720 -276,700 -272,000 -274,3505,000 11,600 11,510 11,555 -267,300 -263,800 -265,5506,000 11,400 11,320 11,360 -256,400 -252,400 -254,4007,000 11,160 11,030 11,095 -242,800 -236,100 -239,4508,000 10,680 10,370 10,525 -216,400 -199,800 -208,1009,000 8,760 7,900 8,330 -109,700 -62,200 -85,950

10,000 7,610 7,420 7,515 -46,000 -35,400 -40,70011,000 7,170 7,090 7,130 -21,800 -17,500 -19,65012,000 6,880 6,810 6,845 -5,500 -1,800 -3,65013,000 6,660 6,600 6,630 6,600 10,200 8,40014,000 6,410 6,330 6,370 20,600 24,800 22,70015,000 6,110 5,970 6,040 37,000 45,300 41,15016,000 5,640 5,590 5,615 63,000 65,800 64,40017,000 3,62 3,27 3,445 175,1 195,5 185,318,000 2,51 2,51 2,51 237,5 237,6 237,5519,000 2,240 2,220 2,230 252,000 253,800 252,90020,000 2,020 2,020 2,020 264,500 265,100 264,80021,000 1,880 1,870 1,875 271,800 273,500 272,65022,000 1,750 1,740 1,745 279,200 280,100 279,65023,000 1,650 1,640 1,645 284,900 286,200 285,55024,000 1,560 1,550 1,555 289,600 290,800 290,200

V (mL) pHr V' (mL) ΔpHr/ΔV V" (mL) Δ(ΔpHr/ΔV)0,000 12,160 0,5 0,075 1,000 0,0501,000 12,085 1,5 0,125 2,000 -0,2352,000 11,960 2,5 -0,11 3,000 0,2403,000 11,850 3,5 0,13 4,000 0,0354,000 11,720 4,5 0,165 5,000 0,0305,000 11,555 5,5 0,195 6,000 0,0706,000 11,360 6,5 0,265 7,000 0,3057,000 11,095 7,5 0,57 8,000 1,6258,000 10,525 8,5 2,195 9,000 -1,3809,000 8,330 9,5 0,815 10,000 -0,430

10,000 7,515 10,5 0,385 11,000 -0,10011,000 7,130 11,5 0,285 12,000 -0,07012,000 6,845 12,5 0,215 13,000 0,04513,000 6,630 13,5 0,26 14,000 0,07014,000 6,370 14,5 0,33 15,000 0,09515,000 6,040 15,5 0,425 16,000 1,74516,000 5,615 16,5 2,17 17,000 -1,23517,000 3,445 17,5 0,935 18,000 -0,65518,000 2,51 18,5 0,28 19,000 -0,07019,000 2,230 19,5 0,21 20,000 -0,06520,000 2,020 20,5 0,145 21,000 -0,01521,000 1,875 21,5 0,13 22,000 -0,03022,000 1,745 22,5 0,1 23,000 -0,00523,000 1,645 23,5 0,095 17,750 0,01424,000 1,550 12 -0,0645833 6,000 -0,005

V (mL) Er V' (mL) ΔEr/ΔV V" (mL) Δ(ΔEr/ΔV)0,000 -298,700 0,500 4,550 1,000 2,1501,000 -294,150 1,500 6,700 2,000 -0,5002,000 -287,450 2,500 6,200 3,000 0,7003,000 -281,250 3,500 6,900 4,000 1,9004,000 -274,350 4,500 8,800 5,000 2,3505,000 -265,550 5,500 11,150 6,000 3,8006,000 -254,400 6,500 14,950 7,000 16,4007,000 -239,450 7,500 31,350 8,000 90,8008,000 -208,100 8,500 122,150 9,000 -76,9009,000 -85,950 9,500 45,250 10,000 -24,200

10,000 -40,700 10,500 21,050 11,000 -5,05011,000 -19,650 11,500 16,000 12,000 -3,95012,000 -3,650 12,500 12,050 13,000 2,25013,000 8,400 13,500 14,300 14,000 4,15014,000 22,700 14,500 18,450 15,000 4,80015,000 41,150 15,500 23,250 16,000 97,65016,000 64,400 16,500 120,900 17,000 -68,65017,000 185,300 17,500 52,250 18,000 -36,90018,000 237,550 18,500 15,350 19,000 -3,45019,000 252,900 19,500 11,900 20,000 -4,05020,000 264,800 20,500 7,850 21,000 -0,850

21,000 272,650 21,500 7,000 22,000 -1,10022,000 279,650 22,500 5,900 23,000 -1,25023,000 285,550 23,500 4,650 17,750 -0,64724,000 290,200 12,000 12,092 6,000 1,008

∆(∆pHr /∆V (+) ∆(∆pHr /∆V (-) ∆(∆pHr /∆V (+)-∆(∆pHr /∆V (-) v koreksi0,24 -0,235 -0,475 -0,355

1,625 -1,38 -3,005 -2,19251,745 -1,235 -2,98 -2,1075

v(+) v potensiometri2 1,6459 6,8075

17 14,8925

3) Gran Plota. H3PO4 + NaOH

V (mL) pHr 10^-pH V x 10^-pH0,000 1,105 7,852E-02 0,000E+001,000 1,305 4,955E-02 4,955E-022,000 1,590 2,570E-02 5,141E-023,000 2,030 9,333E-03 2,800E-024,000 3,165 6,839E-04 2,736E-035,000 5,135 7,328E-06 3,664E-056,000 5,610 2,455E-06 1,473E-057,000 5,935 1,161E-06 8,130E-068,000 6,235 5,821E-07 4,657E-069,000 6,445 3,589E-07 3,230E-0610,000 6,710 1,950E-07 1,950E-0611,000 6,950 1,122E-07 1,234E-0612,000 7,195 6,383E-08 7,659E-0713,000 7,825 1,496E-08 1,945E-0714,000 9,285 5,188E-10 7,263E-0915,000 10,410 3,890E-11 5,836E-1016,000 10,920 1,202E-11 1,924E-1017,000 11,425 3,758E-12 6,389E-1118,000 11,775 1,679E-12 3,022E-1119,000 11,500 3,162E-12 6,008E-1120,000 12,155 6,998E-13 1,400E-11

Gran Plot 1

Persamaan garis y = -0,0179x + 0,0833

Ve = 0,0833

Ka1= - slope = 0,0179

Gran Plot 2

Persamaan garis y = -2E-06x + 2E-05

Ve = 2E-05

Ka2 = 2E-06

b. Na3PO4 + HCl

V (mL) pHr pOH 10^-pOH V x 10^-pOH0,000 12,160 1,840 1,445E-02 0,000E+001,000 12,085 1,915 1,216E-02 1,216E-022,000 11,960 2,040 9,120E-03 1,824E-023,000 11,850 2,150 7,079E-03 2,124E-024,000 11,720 2,280 5,248E-03 2,099E-025,000 11,555 2,445 3,589E-03 1,795E-026,000 11,360 2,640 2,291E-03 1,375E-027,000 11,095 2,905 1,245E-03 8,712E-038,000 10,525 3,475 3,350E-04 2,680E-039,000 8,330 5,670 2,138E-06 1,924E-0510,000 7,515 6,485 3,273E-07 3,273E-0611,000 7,130 6,870 1,349E-07 1,484E-0612,000 6,845 7,155 6,998E-08 8,398E-0713,000 6,630 7,370 4,266E-08 5,546E-0714,000 6,370 7,630 2,344E-08 3,282E-0715,000 6,040 7,960 1,096E-08 1,645E-0716,000 5,615 8,385 4,121E-09 6,594E-0817,000 3,445 10,555 2,786E-11 4,736E-1018,000 2,51 11,490 3,236E-12 5,825E-1119,000 2,230 11,770 1,698E-12 3,227E-1120,000 2,020 11,980 1,047E-12 2,094E-1121,000 1,875 12,125 7,499E-13 1,575E-1122,000 1,745 12,255 5,559E-13 1,223E-1123,000 1,645 12,355 4,416E-13 1,016E-1124,000 1,550 12,450 3,548E-13 8,516E-12

Gran Plot 1

Persamaan garis y = -0,0044x + 0,0396

Ve = 0,0396

Kb1 = 0,0044

Ka3 = 10E-14 x 0,0044

Ka3 = 4,4E-17

Gran Plot 2

Persamaan garis y = -5E-07x + 7E-06

Ve = 7E-06

Kb2= 5E-07

Ka2 = 10E-14 x 5E-07

Ka2 = 5E-21