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SHOW CLEAR SOLUTION: To a test tube containing 10.0 ml of 0.50 M HCl solution in a calorimeter, 0.05482 g  of solid MgO (MW = 40.30 g/mol) at the same temperature was added. A change in  temperature of 6.2°C was recorded. In a separate experiment, the heat capacity of  the calorimeter was determined to be 0.293 kJ/°C. D. Calculate the experimental ΔHrxn (in kJ/mol) for the reaction between MgO and HCl. E. If the theoretical ΔHrxn of the reaction between MgO and HCl is -1349 kJ/mol,  calculate the %error.

SHOW CLEAR SOLUTION: To a test tube containing 10.0 ml of 0.50 M HCl solution in a calorimeter, 0.05482 g  of solid MgO (MW = 40.30 g/mol) at the same temperature was added. A change in  temperature of 6.2°C was recorded. In a separate experiment, the heat capacity of  the calorimeter was determined to be 0.293 kJ/°C. D. Calculate the experimental ΔHrxn (in kJ/mol) for the reaction between MgO and HCl. E. If the theoretical ΔHrxn of the reaction between MgO and HCl is -1349 kJ/mol,  calculate the %error.

Chemistry: An Atoms First Approach
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter7: Chemical Energy
Section: Chapter Questions
Problem 100AE
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SHOW CLEAR SOLUTION:

To a test tube containing 10.0 ml of 0.50 M HCl solution in a calorimeter, 0.05482 g 
of solid MgO (MW = 40.30 g/mol) at the same temperature was added. A change in 
temperature of 6.2°C was recorded. In a separate experiment, the heat capacity of 
the calorimeter was determined to be 0.293 kJ/°C.

D. Calculate the experimental ΔHrxn (in kJ/mol) for the reaction between MgO and
HCl.
E. If the theoretical ΔHrxn of the reaction between MgO and HCl is -1349 kJ/mol, 
calculate the %error.

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