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
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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