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Chem131 Experiment 11 Name: Omar Uribe Section: A2 Date Experiment Preformed: 11/12/2008 Date Report Prepared: 11/13/2008 Inquiry into Calorimetry and Heats of Reactions A. Calrimeter Heat Capacity Useful Units: Data: Density Water (g/mL) 1.00 Trial 1 Trial 2 Specific Heat Capacity Water ( 4.18 Volume hot water (mL 50.0 50.0 Volume cold water (m 50.0 50.0 20.4 20.6 Supporting Calculations: 77.22 57.55 45.7 38.6 1) Calculation of Q Results: Trial 1 Trial 2 Mass cold water (g) 50.0 50.0 Mass hot water (g) 50.0 50.0 5.29E+03 3.77E+03 6.59E+03 3.96E+03 1.30E+03 1.99E+02 2) Calculation of Specific Heat 51.4 11.0 31.2 28.6 B. Heats of Reactions Data: Results: Supporting Calculations: Precipitation: Trial 1 Trial 2 Precipitation: Trial 1 Trial 2 Precipitation: 25 25 Vol Reaction (mL) 50 50 Vol 1M NaOH (mL) 25 25 Mass Reaction (g) 50 50 21.0 20.28 4.5 1.22 25.5 21.5 ### ### ### Rxn Equation: Acid/Base: Trial 1 Trial 2 Acid/Base: Trial 1 Trial 2 Acid/Base: Vol 1M NaOH (mL) 25.5 25 Vol Reaction (mL)
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