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A calorimeter contains 35.0 mL, of water at 12.0 C When 2.10 g of X (a substance with a molar mass of 55.0 g/mol) is added, it dissolves via the reaction X(s) #HO(l)…X(aq) and the temperature of the solution increases to 25.0 "C Calculate the enthalpy change. AH, for this reaction per mole of X Assume that the specific heat of the resulting solution is equal to that of water (4.18 J/(C), that density of water is 1.00 g/mol., and that no heat is lost to the calorimeter itself, nor to the surroundings Express the change in enthalpy in kilojoules per mole to three significant figures. View Available Hint(s) AH= Η ΑΣΦΑΛΙ ? kJ/mol

A calorimeter contains 35.0 mL, of water at 12.0 C When 2.10 g of X (a substance with a molar mass of 55.0 g/mol) is added, it dissolves via the reaction X(s) #HO(l)…X(aq) and the temperature of the solution increases to 25.0 "C Calculate the enthalpy change. AH, for this reaction per mole of X Assume that the specific heat of the resulting solution is equal to that of water (4.18 J/(C), that density of water is 1.00 g/mol., and that no heat is lost to the calorimeter itself, nor to the surroundings Express the change in enthalpy in kilojoules per mole to three significant figures. View Available Hint(s) AH= Η ΑΣΦΑΛΙ ? kJ/mol

Chemistry: An Atoms First Approach
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter7: Chemical Energy
Section: Chapter Questions
Problem 62E: In a coffee-cup calorimeter, 1.60 g NH4NO3 is mixed with 75.0 g water at an initial temperature of...
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Review Constants | Periodic Table A calorimeter contains 35.0 mL of water at 12.0°C. When 2.10 g of X (a substance with a molar mass of 55.0 g/mol) is added, it dissolves via the reaction X(s) + H_O{1)—X(aq) and the temperature of the solution increases to 25.0 C Calculate the enthalpy change, AH, for this reaction per mole of X Assume that the specific heat of the resulting solution is equal to that of water (4.18 J/(gC)), that density of water is 1.00 g/ml., and that no heat is lost to the calorimeter itself, nor to the surroundings. Express the change in enthalpy in kilojoules per mole to three significant figures. View Available Hint(s) AH = Submit VG| ΑΣΦΑ ? kJ/mol
Transcribed Image Text:Review Constants | Periodic Table A calorimeter contains 35.0 mL of water at 12.0°C. When 2.10 g of X (a substance with a molar mass of 55.0 g/mol) is added, it dissolves via the reaction X(s) + H_O{1)—X(aq) and the temperature of the solution increases to 25.0 C Calculate the enthalpy change, AH, for this reaction per mole of X Assume that the specific heat of the resulting solution is equal to that of water (4.18 J/(gC)), that density of water is 1.00 g/ml., and that no heat is lost to the calorimeter itself, nor to the surroundings. Express the change in enthalpy in kilojoules per mole to three significant figures. View Available Hint(s) AH = Submit VG| ΑΣΦΑ ? kJ/mol
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