Lab 2- Measurement

Lab 2- Measurement - Date performed: 9/7/10 Name: Brian...

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Unformatted text preview: Date performed: 9/7/10 Name: Brian Lubnow Date Submitted: 9/27/10 Partner: Rebekah Balint Instructor: Alex Xu Experiment 2: Measurement Objective: The objective of this lab is to observe the changing temperature of water, and to learn to use lab equipment properly. Experimental Data: A. The Cooling of Water Time (min.) Polystyrene Cup ( o C) Temperature Probe Beaker ( o C) Thermometer 68.30 66.0 5 55.03 53.0 10 47.03 44.0 15 41.58 39.0 20 37.51 35.0 25 34.34 31.5 30 32.93 30.0 35 31.02 28.0 40 29.42 27.5 45 28.19 27.0 50 27.32 26.0 1 B. Temperature Changes- Mixing Hot and Cold Water Step Volume in cup (ml) Volume added (ml) Initial temp. ( o C) Final temp. ( o C) 1 50.0 10.00 79.49 64.98 2 60.0 10.00 64.98 56.21 3 70.0 10.00 56.21 50.60 4 80.0 10.00 50.60 46.05 5 90.0 10.00 46.05 42.93 Sample Calculations Correction Factor:- TProbe TThermometer . ° - . ° =- . ° 23 35 C 25 0 C 1 65 C Density of Water: Temp of Water (°C) Density (g/mL) Lower range 35 0.9941 Upper 40 0.9922 2 range change...
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This note was uploaded on 10/04/2011 for the course CHEM 1036 at Virginia Tech.

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Lab 2- Measurement - Date performed: 9/7/10 Name: Brian...

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