postlab11 - Laura Lanier Exp 11 Lab L2 November 19, 2009...

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Unformatted text preview: Laura Lanier Exp 11 Lab L2 November 19, 2009 Data/Results Average Heat Capacity ( J/ C) 20.13 Standard Deviation ( J/ C) 6.09526 Pa r t A Tr ial 1 Init ial Temp ( C) 20.21 Temp of Hot Water 70.71 Final Temp 44.24 Change in Temp 24.03 Heat Capacity ( J/ C) 24.44 Tr ial 2 Init ial Temp ( C) 19.95 Temp of Hot Water 58.48 Final Temp 40.19 Change in Temp 20.24 Heat Capacity ( J/ C) -20.15 Tr ial 3 Init ial Temp ( C) 19.95 Temp of Hot Water 57.00 Final Temp 37.80 Change in Temp 17.85 Heat Capacity ( J/ C) 15.82 Sample Calculat ion for C cal 1 Laura Lanier Exp 11 Lab L2 November 19, 2009 Pa r t B Balanced Equat ion (Mg + HCl) Mg (s) + 2HCl (aq) MgCl 2 (aq) + 2H + (aq) Mass of Mg (g) 0.153 Moles of Mg (mol) 0.00629 [HCl] (M) 1 Volume HCl (mL) 100 Moles of HCl (mol) 0.1 Initial Temp ( C) 21.07 Final Temp ( C) 28.09 Change in Temp ( C) 7.02 Time (s) Temp ( C) 60 28.02 120 28.09 180 28.00 240 27.86 300 27.77 360 27.79 420 27.63 480 27.60 540 2 Laura Lanier Exp 11 Lab L2 November 19, 2009 27.47 600 27.37 660 27.30 720 27.26 780 27.09 840 27.09 H (kJ)-3.0784806 H (kJ/mol)-163.14 Limiting Reactant Mg 3 Laura Lanier...
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This note was uploaded on 09/12/2011 for the course CHEM 1310 taught by Professor Cox during the Fall '08 term at Georgia Institute of Technology.

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postlab11 - Laura Lanier Exp 11 Lab L2 November 19, 2009...

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