# LAMPIRAN 5

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lampiran perhitungan

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LAMPIRAN1.Menghitung Ka Asam Asetat a.Pengulangan 1V ekuivalen = 25 mlV ½ ekuivalen = ½ x 25 ml =12,5 ml pKa=pH ½ ekuivalen=5,4 pKa = -log KaKa=10 -pKa  = 10 -5,4  = 4,0x10 -6  b.Pengulangan 2V ekuivalen = 16 mlV ½ ekuivalen = ½ x 16 ml =8 ml pKa=pH ½ ekuivalen=5,4 pKa = -log KaKa=10 -pKa  = 10 -5,4  = 4,6x10 -6 2.Menghitung Ka Asam Fosfat a.Pengulangan 1V ekuivalen = !0 ml pKa 1 = pH ½ ekuivalen=,1 pKa 1  = -log Ka 1 Ka 1 =10 -,1 Ka 1 =4, x10 -4 PKa 2 = pH #2 ekuivalen=!,5 pKa 2  = -log Ka 2 Ka 2 =10 -!,5 Ka 2 =,2x10 -8  b.Pengulangan 2V ekuivalen = 20 ml pKa 1 = pH ½ ekuivalen=,5 pKa 1  = -log Ka 1 Ka 1 =10 -,5 Ka 1 =,2x10 -4 PKa 2 = pH #2 ekuivalen=!, pKa 2  = -log Ka 2 Ka 2 =10 -!, Ka 2 =5,0x10 -8  Kurva Titrasi Asam Asetat Pengulangan 1Pengulangan 2  Kurva titrasi Asam Fosfat Pengulangan 1Pengulangan 2
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