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measurement lab report

# measurement lab report - Date performed Date submitted...

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Date performed: 9/5/11 Ann Forrest Date submitted: 9/12/11 Partner: Eunbeul An Instructor: Emily Klein Measurement Objective: To measure temperature changes in water under different experimental conditions To become familiar with common laboratory equipment, with measuring, and with the concept of significant figures To make a good laboratory notebook record of your work To write a report of your laboratory results including written description, tabulation of results, and the presentation of graphs Experimental data: Part A: The Cooling of Water Time Temperature of beaker (with thermometer) in °C Temperature of cup (with temperature probe) in °C 0 75.0 85.68 5 54.5 59.00 10 49.5 48.95 15 27.8 29.50 21 32.3 34.95 26 30.5 33.65 31 30.5 30.43 36 29.0 29.66 41 27.5 27.80 46 26.0 26.51 51 25.1 25.80 55 24.9 24.95 60 24.0 24.28 Table: value of temperature in beaker and cup of 50 mL of water Part B: Temperature Changes-Mixing Hot and Cold Water Table: Change in Volume and Temperature of Water Step Volume in cup (mL) Volume added in cup (mL) Initial T (°C) Final T(°C) 1 50.0 10.01 75.02 56.23 2 60.01 10.00 56.23 48.44 3 70.01 10.02 48.44 44.45 4 80.03 10.00 44.45 40.17 5 90.03 9.50 40.17 37.80

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Sample Calculations: Part A: The Cooling of Water Correction factor for the thermometer thermometer: 25.0° C temperature probe: 22.8° C Tprobe-Tthermometer= correction factor 22.8-25.0= -2.17° C Thermometer is 2.17 °C higher than the temperature probe, so whenever I did a measurement using the
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measurement lab report - Date performed Date submitted...

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