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 9.07 g of K2SO4(s) are dissolved in 110.50 g of water, the temperature of the solution drops from 23.80 to 20.79 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.88 J/°C. Based on the student's observation, calculate the enthalpy of dissolution of K₂SO4(s) in kJ/mol. Assume the specific heat of the solution is equal to the specific heat of water. AH dissolution kJ/mol Brook Cengage Leaming Thermometer Cardboard or Styrofoam lid Nested Styrofoam cups Reaction occurs in solution.
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 9.07 g of K2SO4(s) are dissolved in 110.50 g of water, the temperature of the solution drops from 23.80 to 20.79 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.88 J/°C. Based on the student's observation, calculate the enthalpy of dissolution of K₂SO4(s) in kJ/mol. Assume the specific heat of the solution is equal to the specific heat of water. AH dissolution kJ/mol Brook Cengage Leaming Thermometer Cardboard or Styrofoam lid Nested Styrofoam cups Reaction occurs in solution.
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.63QE: A 0.470-g sample of magnesium reacts with 200 g dilute HCl in a coffee-cup calorimeter to form...
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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
9.07 g of K₂SO4(s) are dissolved in 110.50 g of water, the
temperature of the solution drops from 23.80 to 20.79 °C.
The heat capacity of the calorimeter (sometimes referred to
as the calorimeter constant) was determined in a separate
experiment to be 1.88 J/°C.
Based on the student's observation, calculate the enthalpy of
dissolution of K₂SO4(s) in kJ/mol.
Assume the specific heat of the solution is equal to the
specific heat of water.
Brook, Cengage Leaming
Thermometer
Cardboard or
Styrofoam lid
Nested
Styrofoam cups
-Reaction
occurs in
solution.
AH dissolution
=
kJ/mol](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa9b623d9-61c1-4c19-9abf-43bc29bb2b62%2F10b796d6-d3c2-4183-b9d8-903610232470%2Fgno4d9_processed.png&w=3840&q=75)
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
9.07 g of K₂SO4(s) are dissolved in 110.50 g of water, the
temperature of the solution drops from 23.80 to 20.79 °C.
The heat capacity of the calorimeter (sometimes referred to
as the calorimeter constant) was determined in a separate
experiment to be 1.88 J/°C.
Based on the student's observation, calculate the enthalpy of
dissolution of K₂SO4(s) in kJ/mol.
Assume the specific heat of the solution is equal to the
specific heat of water.
Brook, Cengage Leaming
Thermometer
Cardboard or
Styrofoam lid
Nested
Styrofoam cups
-Reaction
occurs in
solution.
AH dissolution
=
kJ/mol
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