When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolving) can be determined using a coffee cup calorimeter. In the laboratory a general chemistry student finds that when 12.71 g of NaCIO,(s) are dissolved in 115.90 g of water, the temperature of the solution drops from 25.67 to 22.20 ° The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.73 J°C. Based on the student's observation, calculate the enthalpy of dissolution of NaCIO,(s) in kJ'mol. Assume the specific heat of the solution is equal to the specific heat of water. AHdissolution ]kJ/mol
When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolving) can be determined using a coffee cup calorimeter. In the laboratory a general chemistry student finds that when 12.71 g of NaCIO,(s) are dissolved in 115.90 g of water, the temperature of the solution drops from 25.67 to 22.20 ° The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.73 J°C. Based on the student's observation, calculate the enthalpy of dissolution of NaCIO,(s) in kJ'mol. Assume the specific heat of the solution is equal to the specific heat of water. AHdissolution ]kJ/mol
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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