7. Hess's Law & Standard Enthalpy of Formation a) Use the standard enthalpies of formation to determine the molar enthalpy of combustion for pentane. Assume water is liquid. Also sketch a potential energy diagram for the reaction. b) Ammonium nitrate fertilizer is produced by the reaction of ammonia with nitric acid: NH3 (g) + HNO3 (1)→ NH4NO3 (aq). Use standard enthalpies of formation to calculate the standard enthalpy change of the reaction above. Also sketch a potential energy diagram for the reaction.

Chemistry & Chemical Reactivity
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Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions
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Problem 61PS: The standard enthalpy of formation of solid barium oxide, BaO, is 553.5 kJ/mol, and the standard...
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7. Hess's Law & Standard Enthalpy of Formation
a) Use the standard enthalpies of formation to determine the molar enthalpy of combustion for pentane.
Assume water is liquid. Also sketch a potential energy diagram for the reaction.
b) Ammonium nitrate fertilizer is produced by the reaction of ammonia with nitric acid:
NH3 (g) + HNO3 (1)→ NH4NO3 (aq). Use standard enthalpies of formation to calculate the standard
enthalpy change of the reaction above. Also sketch a potential energy diagram for the reaction.
Transcribed Image Text:7. Hess's Law & Standard Enthalpy of Formation a) Use the standard enthalpies of formation to determine the molar enthalpy of combustion for pentane. Assume water is liquid. Also sketch a potential energy diagram for the reaction. b) Ammonium nitrate fertilizer is produced by the reaction of ammonia with nitric acid: NH3 (g) + HNO3 (1)→ NH4NO3 (aq). Use standard enthalpies of formation to calculate the standard enthalpy change of the reaction above. Also sketch a potential energy diagram for the reaction.
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