A 8.17 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee cup calorimeter. Before placing the sample in the water, the temperature of the salt and water is 23.72°C. After the salt has completely dissolved, the temperature of the solution is 28.54°C. Q: If -3.19 × 10³ J of heat was lost during the dissolution reaction of 0.0699 moles of the unknown salt, what is the enthalpy change (in kJ/mol of salt) for the dissolution reaction?
A 8.17 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee cup calorimeter. Before placing the sample in the water, the temperature of the salt and water is 23.72°C. After the salt has completely dissolved, the temperature of the solution is 28.54°C. Q: If -3.19 × 10³ J of heat was lost during the dissolution reaction of 0.0699 moles of the unknown salt, what is the enthalpy change (in kJ/mol of salt) for the dissolution reaction?
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.27QP: Hypothetical elements A2 and B2 react according to the following equation, forming the compound AB....
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A 8.17 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee cup calorimeter. Before placing the sample in the water, the temperature of the salt and water is 23.72°C. After the salt has completely dissolved, the temperature of the solution is 28.54°C.
Q: If -3.19 × 10³ J of heat was lost during the dissolution reaction of 0.0699 moles of the unknown salt, what is the enthalpy change (in kJ/mol of salt) for the dissolution reaction?
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