data pengamatan penentuan tetapan kalorimeter
Post on 06-Jul-2015
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Data pengamatan Penentuan Tetapan Kalorimeter Temperatur air mula-mula = 28 0C
Temperatur air panas mula-mula = 38 0C
Waktu (menit) 1 2 3 4 5 6 7 8 9 10
Temperatur ( 0C ) 33.0 32.5 32.5 32.0 32.0 32.0 32.0 32.0 32.0 31.5
Data pengamatan Penentuan Kalor Penetralan HCl dan NaOH Reaksi kalor penetralan HCl dan NaOH : HCl + NaOH NaCl + H2O
Temperatur HCl mula-mula Temperatur NaOH mula-mula
= 28 0C = 28 0C
Waktu (menit) 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Stoikhiometri Sistem NaOH HCl H2O Reaksi NaOH + HCl NaCl + H2O
Temperatur (0C) 36.0 35.5 35.0 35.0 34.5 34.0 34.0 34.0 33.5 33.5
Temperatur mula-mula NaOH 2 M : 27.5 C Temperatur mula-mula HCl 2 M : 27.5 C Temperatur mula-mula rata-rata : 27.5C
Volume NaOH (mL) 45 40 35 30 25
Volume HCl (mL) 5 10 15 20 25
TM (C) 27.5 27.5 27.5 27.5 27.5
TA (C) 29.0 31.5 33.5 36.0 38.0
T (TA-TM) (C) 1.5 4 6 8.5 10.5
20 15 10 5
30 35 40 45
27.5 27.5 27.5 27.5
36.5 35.0 32.8 30.5
9 7.5 5.3 3
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