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