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Chemistry 21 Online
OpenStudy (anonymous):

PLEASE HELP. In a bomb calorimeter, 12.8g of magnesium metal are burned in excess oxygen to give magnesium oxide. 2Mg(s)+O_2(g)->2MgO(s) a. Using the heats of formation of the reactants and products, calculate the molar enthalpy change of the reaction in kJ/mol b. Determine the total heat released by burning 12.8 g of the metal. c. If the heat capacity of the calorimeter is 907J/C degrees, how much will the calorimeter temperature rise by? Any help would be greatly appreciated, please show your work.

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