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exp7 - Freezing Point Depression to Determine Molar Mass 1...

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Freezing Point Depression to Determine Molar Mass Excel Template Chem1310 Post-Lab Assignment (C) 2003 Tatsuya Maehigashi Chem1310 Name: Partner's Name: Section: Date of Experiment Performed: Date of Report Prepared: Freezing Point Depression to Determine Molar Mass Tabulated Data Tabulated Data Trial 1 Trial 2 Trial 1 Trial 2 Time (sec)Temp (°C)Time (sec)Temp (°C) Time (sec)Temp (°C)Time (sec)Temp (°C) 0 17.62 0 18.29 0 3.68 15 8.92 15 12.03 15 2.85 30 5.51 30 8.27 30 2.12 45 3.79 45 5.97 45 1.15 60 2.48 60 4.71 60 0.28 75 1.39 75 3.44 75 -0.48 90 0.91 90 2.36 90 -1.13 105 0.16 105 1.39 105 -1.03 120 -0.61 120 0.78 120 -2.07 135 -1.27 135 0.03 135 -2.34 150 -0.48 150 -0.48 150 -2.44 165 -0.23 165 -1.13 165 -2.90 180 -0.48 180 -1.67 180 -3.03 195 -0.35 195 -2.07 195 -3.03 210 -0.48 210 -2.21 210 -2.48 225 -0.1 225 -2.8 225 -2.5 240 -0.4 240 -3.0 240 -2.21 255 -0.4 255 -3.3 255 -2.07 270 -0.4 270 -3.5 270 -2.07 285 -0.35 285 -3.59 285 -2.07 300 -0.35 300 -3.72 300 -2.07 315 -0.61 315 -4.02 315 -1.93 330 -0.48 330 -4.11 330 -2.07 345 -0.48 345 -4.14 345 -1.93 360 -0.61 360 -4.29 360 -1.93 375 -0.48 375 -4.57 375 -1.8 390 -0.74 390 -4.57 390 -2.07 405 -0.74 405 -4.86 405 -1.93 420 -0.74 420 -4.86 420 -1.8 435 -0.74 435 -4.86 435 -1.8 450 -1 450 -4.86 450 -1.67 -0.54 -3.95 -2.09 Useful Values Determination of MW unknown 0°C (K) 273.15 Trial 1 Trial 2 kf (K/m) 1.86 -0.54 -0.54 -3.950 -2.09 Tabulated Results 3.410 2.63 Preparation of Solution 0.0103 Unknown ID F1 1.8 1.27 10.330 0.0189 0.0131 10.870 28.5100 36.9700 0.540 32.7400 10 pt Identified Unknown Urea A. Determination of F p of Water B. Determination of F
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