53. In a chemistry experiment, 12 g of (NH4)₂SO4(s) was dissolved in 120 mL of water in a simple calorimeter. A temperature change from 20.2°C to 17.8°C was observed. The experimental molar enthalpy of solution for ammonium sulfate was a. b. - 13 kJ/mol - 1.2 kJ/mol C. +1.2 kJ/mol d. +13 kJ/mol 54. The heat energy produced when 1.00 g of butane in a disposable lighter is completely burned to form gaseous carbon dioxide and water vapour is a. 45.7 kJ b. 124.7 kJ c. 2 656.5 kJ d. 5 313.0 kJ

53. In a chemistry experiment, 12 g of (NH4)₂SO4(s) was dissolved in 120 mL of water in a simple calorimeter. A temperature change from 20.2°C to 17.8°C was observed. The experimental molar enthalpy of solution for ammonium sulfate was a. b. - 13 kJ/mol - 1.2 kJ/mol C. +1.2 kJ/mol d. +13 kJ/mol 54. The heat energy produced when 1.00 g of butane in a disposable lighter is completely burned to form gaseous carbon dioxide and water vapour is a. 45.7 kJ b. 124.7 kJ c. 2 656.5 kJ d. 5 313.0 kJ

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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