107_expts

107_expts - Calculation Workbook Chemistry 107 Initial...

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Calculation Workbook Chemistry 107 Initial design: Philip R. Brown Current design: Taylor Reynolds © 1998-2005 Brigham Young University Provo, Utah 84602
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Experiment 5: Freezing Point Depression Line Trial 1 Trial 2 Trial 3 Trial 4 Units A. 14.806 14.47 14.477 14.792 g B 19.809 19.566 20.402 19.928 g C 24 24.1 24.1 22.9 deg C D 0.636 0.636 0.637 0.781 g E 0.435 0.433 0.437 0.57 g F 13.8 14.2 15.3 12 deg C G 5.003 5.096 5.925 5.136 g cyclohexanol H 0.201 0.203 0.200 0.211 g unknown I 0.2575758 0.25 0.2222222 0.2752525 m J 156 159 152 149 g/mol -10.2 -9.9 -8.8 -10.9 T
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Time Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 Trial 6 0 23.3 -0.04 22.6 -0.06 23.2 -0.1 22.5 0 24.4 -0.12 23.7 -0.17 1 23.3 22.5 23.1 22.5 24.2 23.6 2 23.2 22.5 23.0 22.5 24.2 23.4 3 23.2 22.4 22.9 22.5 24 23.2 4 23.1 22.4 22.8 22.5 23.9 23.0 5 32.3 32.5 30.2 32.2 32.3 33.7 24.1 34.7 31.6 31.0 35 35.0 6 32.4 -0.17 31.9 -0.19 33.6 -0.20 34.1 -0.2 31.1 -0.16 35.3 -0.20 7 32.2 33.14 31.6 32.91 33.4 34.50 34.7 35.5 30.9 31.68 35 35.80 8 31.9 31.4 33.1 34.3 30.6 34.7 9 31.7 31.2 32.8 34.1 30.3 34.4 10 31.5 31.0 32.6 33.8 30.1 34 11 31.2 30.9 32.3 33.6 29.9 33.8 12 31.0 30.6 32.1 33.2 29.7 33.5 13 30.9 30.5 31.9 32.9 29.6 33.2 14 30.8 30.2 31.7 32.7 29.4 33 15 30.6 30.1 31.5 32.5 29.2 32.8 16 30.4 29.9 31.3 32.3 29.1 32.6 Adjust formulae in cells with red text (to include the points of uniform temperature change) 1 3 5 7 9 11 13 15 17 19 20.0 22.0 24.0 26.0 28.0 30.0 32.0 34.0 36.0 38.0 Temperature plot Column B Column D Column F Column H Column J Column L Time(mins) T/deg C
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Fill in temperature data and set linear regression on page Expt 6a FIRST!! Line Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 Trial 6 A 23.1 22.4 22.8 22.5 23.9 23.0 Density HCl 1.028 g/mL B 32.5 32.2 33.7 34.7 31.0 35.0 s(reaction sys) 4.03 J/g.deg C C 10.00 10.00 10.00 10.00 10.00 10.00 C(calorimeter) 7.5 J/deg C D 15.036 15.054 14.969 15.169 15.020 14.692 E 14.798 14.816 14.700 14.842 14.709 14.492 F 0.238 0.238 0.269 0.327 0.311 0.200 Mass of unknown G 395.052 415.321 463.386 521.504 303.487 505.968 q(cal) H 69.900 73.486 81.750 91.500 53.329 89.850 q(sys) I 464.952 488.807 545.136 613.004 356.816 595.818 q(total) J 1953.579 2053.812 2026.528 1874.629 1147.318 2979.091 (J/g) S.F.= 2 S.F.= 2 S.F.open S.F.open S.F.= 2 S.F.open q(cal) S.F.= 3 S.F.= 3 S.F.= 3
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107_expts - Calculation Workbook Chemistry 107 Initial...

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