Chem 1310 Exp 11

Chem 1310 Exp 11 - Chem1310 Name: Partner'sName: Section:

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Chem1310 Name:  Michael Shuty Partner's Name: Jason Ginn Section: B1 Date of Experiment Performed: 4/15/2010 Date of Report Prepared: 4/22/2010 PART A Initial Temp Temp of Hot before mixing Final Temp Change in Temp Heat Capacity (J/C) Trial 1 21.3 C 79.2 50.4 416.4 Trial 2 22.4 85.5 50.3 (-35.2) C, 27.9 C 473.4 Trial 3 21.9 83.3 48 (--35.3) C, 26.1 C 20.92 Average Heat Capcity 19.31 Standard Deviation 246.44 Sample Calculations: (-qHOT) = qCOLD + qCAL (-50g)(4.184 J/C)(-29.5 C) = (50g)(4.184 J/C)(27.5 C) + X(27.5 C) Mg(s) MgO(s) PART B Time (s) Temp ( C) Time (s) Temp ( C) 0 22.2 0 21.9 60 29.5 60 27.4 120 29.4 120 28.2 180 29.5 180 28.3 240 29.4 240 28.3 300 29.4 300 28.2 360 29.3 360 28.2 420 29.2 420 28.1 (-28.8) C, 29.1 C
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Change in Temp 6.5 C qRXN = -(qCAL + qH2O) qRXN = -[(19.31 J/C)(6.5 C) + (100g)(4.184 J qRXN = -2845.12 J Change in Temp 6 C qRXN = -(qCAL + qH2O) qRXN = -[(19.31 J/C)(6 C) + (100g)(4.184 J/C
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Chem 1310 Exp 11 - Chem1310 Name: Partner'sName: Section:

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