Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Thermometer
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.
Cardboard or
Styrofoam lid
In the laboratory a general chemistry student finds that when 6.84 g of CsBr(s) are dissolved in 116.00 g of
water, the temperature of the solution drops from 24.93 to 23.05 °C.
The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a
separate experiment to be 1.85 J/°C.
Nested
Styrofoam cups
Based on the student's observation, calculate the enthalpy of dissolution of CsBr(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
rookat CengaeL
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Transcribed Image Text:Thermometer 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. Cardboard or Styrofoam lid In the laboratory a general chemistry student finds that when 6.84 g of CsBr(s) are dissolved in 116.00 g of water, the temperature of the solution drops from 24.93 to 23.05 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.85 J/°C. Nested Styrofoam cups Based on the student's observation, calculate the enthalpy of dissolution of CsBr(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 rookat CengaeL
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