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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 4.53 g of NH4CIO4(s) are dissolved in 111.60 g of water, the temperature of the solution drops from 24.02 to 21.06 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.81 J/°C. Based on the student's observation, calculate the enthalpy of dissolution of NH4CIO4(s) in kJ/mol. Assume the specific heat of the solution is equal to the specific heat of water. AH dissolution 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 4.53 g of NH4CIO4(s) are dissolved in 111.60 g of water, the temperature of the solution drops from 24.02 to 21.06 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.81 J/°C. Based on the student's observation, calculate the enthalpy of dissolution of NH4CIO4(s) in kJ/mol. Assume the specific heat of the solution is equal to the specific heat of water. AH dissolution kJ/mol

Chemistry
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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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 4.53 g of NH4CIO4(s) are dissolved in 111.60 g of water, the temperature of the solution drops from 24.02 to 21.06 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.81 J/°C. Based on the student's observation, calculate the enthalpy of dissolution of NH4CIO4(s) in kJ/mol. Assume the specific heat of the solution is equal to the specific heat of water. AH dissolution = kJ/mol Thermometer Cardboard or Styrofoam lid Nested Styrofoam cups Reaction occurs in solution.
Transcribed Image Text: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 4.53 g of NH4CIO4(s) are dissolved in 111.60 g of water, the temperature of the solution drops from 24.02 to 21.06 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.81 J/°C. Based on the student's observation, calculate the enthalpy of dissolution of NH4CIO4(s) in kJ/mol. Assume the specific heat of the solution is equal to the specific heat of water. AH dissolution = kJ/mol Thermometer Cardboard or Styrofoam lid Nested Styrofoam cups Reaction occurs in solution.
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