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 12.71 g of NaCIO,(s) are dissolved in 115.90 g of water, the temperature of the solution drops from 25.67 to 22.20 ° The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.73 J°C. Based on the student's observation, calculate the enthalpy of dissolution of NaCIO,(s) in kJ'mol. Assume the specific heat of the solution is equal to the specific heat of water. AHdissolution ]kJ/mol

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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 12.71 g of NaCio,(s) are dissolved in 115.90 g of water, the temperature of the solution drops from 25.67 to 22.20 °C.
The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.73 J/°C.
Nested
Based on the student's observation, calculate the enthalpy of dissolution of NaC104(s) in kJ/mol.
Styrofoam cups
Assume the specific heat of the solution is equal to the specific heat of water.
- Reaction
occurs in
AHdissolution =
kJ/mol
solution.
e t Cangage Ln
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 12.71 g of NaCio,(s) are dissolved in 115.90 g of water, the temperature of the solution drops from 25.67 to 22.20 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.73 J/°C. Nested Based on the student's observation, calculate the enthalpy of dissolution of NaC104(s) in kJ/mol. Styrofoam cups Assume the specific heat of the solution is equal to the specific heat of water. - Reaction occurs in AHdissolution = kJ/mol solution. e t Cangage Ln
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