Heat of Reaction

Heat of Reaction - Heat of Reaction: Hesss Law Anam Ahmad...

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Heat of Reaction: Hess’s Law Anam Ahmad CHEM 211-204 4/1/09 Lab Report
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Purpose: To calculate the heat of formation of magnesium oxide Procedure: 1. assemble calorimeter 2. put 50mL of 1M HCl in calorimeter 3. cover and put in thermometer – get initial tempreture 4. weigh .2g of Mg metal turnings 5. add Mg to HCl cover top, stir, check temp until max temp is reached 6. repeat steps 2-5 with Mg 7. repeat steps 2-5 with the exception: instead of .2g Mg use .5g MgO (2x) Results and Calculations: RAW DATA ID V1_Mg m1_Mg initT1_Mg fnlT1_Mg V2_Mg m2_Mg initT2_Mg fnlT2_Mg 1 50 0.2 22 37 50 0.2 21.5 37 2 50 0.198 22 35 50 0.197 21 37 3 50 0.22 21 39 50 0.224 21.35 39 4 50 0.207 21 33 50 0.202 21 31 5 50 53 24 39 50 53 23 38 6 49.5 .2 20.5 36.5 51 .215 20 37.5 7 49 0.205 22 37 48 0.205 21 39 8 49.8 0.204 21.2 38.6 50.1 0.201 21.4 37.9 9 49.9 0.202 21 34 49.9 1.96 21 35 10 50 0.208 22 39 50 0.18 21.5 35 11 49.8 0.205 21 38.5 50 0.203 20.7 38 V1_Mg O m1_Mg O initT1_Mg O fnlT1_Mg O V2_Mg O m2_Mg O initT2_Mg O fnlT2_Mg O 50 0.5 21.75 27 50 0.5 21.5 27 50 0.502 21.5 26 50 0.503 21 27 50 0.514 21.5 28 50 0.547 21.5 29 50 0.5 22 25 50 0.516 21 27 50 53 21 27 50 53
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This note was uploaded on 04/29/2009 for the course CHEM 211 taught by Professor Papanastasiou during the Spring '07 term at George Mason.

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Heat of Reaction - Heat of Reaction: Hesss Law Anam Ahmad...

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