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 5.62QE: A 50-mL solution of a dilute AgNO3 solution is added to 100 mL of a base solution in a coffee-cup...
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![When a solid dissolves in water, the solution may become hotter or colder.
The dissolution enthalpy (dissolving) can be determined using a coffee cup
calorimeter.
In the laboratory a general chemistry student finds that when 17.30
g BaCl,(s) is dissolved in 112.70 g water, the temperature of the solution
increases from 24.24 to 26.93 °C.
The heat capacity of the calorimeter (sometimes referred to as the
calorimeter constant) was determined in a separate experiment to be 1.51 J/
°C.
Based on the student's observation, calculate the dissolution enthalpy of
BaCl,(s) in kJ/mol.
Assume the specific heat capacity of the solution is equal to the specific
heat capacity of water.
AdisH
kJ/mol
%3D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2f619dbb-fdef-460b-b92d-9112a1596c50%2F11aefacc-f792-42c6-b4e9-6d567368607c%2Fsbqv9tv_processed.png&w=3840&q=75)
Transcribed Image Text:When a solid dissolves in water, the solution may become hotter or colder.
The dissolution enthalpy (dissolving) can be determined using a coffee cup
calorimeter.
In the laboratory a general chemistry student finds that when 17.30
g BaCl,(s) is dissolved in 112.70 g water, the temperature of the solution
increases from 24.24 to 26.93 °C.
The heat capacity of the calorimeter (sometimes referred to as the
calorimeter constant) was determined in a separate experiment to be 1.51 J/
°C.
Based on the student's observation, calculate the dissolution enthalpy of
BaCl,(s) in kJ/mol.
Assume the specific heat capacity of the solution is equal to the specific
heat capacity of water.
AdisH
kJ/mol
%3D
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