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12 Dec 2019
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 18.11 g of BaBr2(s) are dissolved in 105.50 g of water, the temperature of the solution increases from 23.71 to 26.57°C.
The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.90 J/°C.
Based on the student's observation, calculate the enthalpy of dissolution of BaBr2(s) in kJ/mol.
Assume the specific heat of the solution is equal to the specific heat of water.
ÎHdissolution = ______ 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 18.11 g of BaBr2(s) are dissolved in 105.50 g of water, the temperature of the solution increases from 23.71 to 26.57°C.
The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.90 J/°C.
Based on the student's observation, calculate the enthalpy of dissolution of BaBr2(s) in kJ/mol.
Assume the specific heat of the solution is equal to the specific heat of water.
ÎHdissolution = ______ kJ/mol
akshaypatil83878Lv10
2 Mar 2023
Bunny GreenfelderLv2
13 Dec 2019
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