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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 5.25 g of K,SO,(s) are dissolved in 115.60 g of water, the temperature of the solution drops from 23.87 to 22.27 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.76 J/°C. Based on the student's observation, calculate the enthalpy of dissolution of K,SO4(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 5.25 g of K,SO,(s) are dissolved in 115.60 g of water, the temperature of the solution drops from 23.87 to 22.27 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.76 J/°C. Based on the student's observation, calculate the enthalpy of dissolution of K,SO4(s) in kJ/mol. Assume the specific heat of the solution is equal to the specific heat of water. AHdissolution kJ/mol

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.109QP: A 21.3-mL sample of 0.977 M NaOH is mixed with 29.5 mL of 0.918 M HCl in a coffee-cup calorimeter...
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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. Thermometer Cardboard or In the laboratory a general chemistry student finds that when 5.25 g of K,SO4(s) are dissolved in 115.60 g of Styrofoam lid water, the temperature of the solution drops from 23.87 to 22.27 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.76 J/°C. Nested Styrofoam cups Based on the student's observation, calculate the enthalpy of dissolution of K,SO,(s) in kJ/mol. Reaction Assume the specific heat of the solution is equal to the specific heat of water. occurs in solution. AHdissolution kJ/mol
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. Thermometer Cardboard or In the laboratory a general chemistry student finds that when 5.25 g of K,SO4(s) are dissolved in 115.60 g of Styrofoam lid water, the temperature of the solution drops from 23.87 to 22.27 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.76 J/°C. Nested Styrofoam cups Based on the student's observation, calculate the enthalpy of dissolution of K,SO,(s) in kJ/mol. Reaction Assume the specific heat of the solution is equal to the specific heat of water. occurs in solution. AHdissolution kJ/mol
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