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Unformatted text preview: Chem 124 Computer # 27 Assigned Metal: Magnesium The Heat of Combustion of Metals Instructions: Each person is to submit an individual report after performing the experiment with your partner. This report is due at the beginning of class on Tuesday, October 11, 2011 . You are to fill in the appropriate spaces using Microsoft Word to create a clear and informative report. To draw attention to your answers, you may want to use color or bold type. Be sure to keep your answers and graphs within the allotted spaces (some resizing may be necessary on your part). You will turn in a hard copy of this report. Part 1. Original Data A. Fill in your data from the best 2 experimental trials in the tables below. This table does not replace the table you should also have in your lab notebook, where you should write down your data as you collect it. You must also turn in your copy of this data from your notebook. Title these tables appropriately (in the space below)! Trial Mass of metal Mass of HCl/H 2 O T initial T Final heat of reaction H reaction in kJ/mole metal 1 .021 g 26.169 g 17.4 °C 21.0 °C 394.17 J -456.3 kJ/mole Mg 2 .023 g 25.865 g 17.3 °C 21.1 °C 411.23 J -434.5 kJ/mole Mg Trial Mass of metal oxide Mass of HCl/H 2 O T initial T Final heat of reaction H reaction in kJ/mole metal oxide 1 .256 g 25.64 g 18.0 °C 24.3 °C 675.85 J -106.4 kJ/mole MgO 2 .255 25.864 18.2 °C 18....
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- Fall '08