Homework answers / question archive / Part A Calculate the standard enthalpy change for the reaction 2A+B?2C+2D Use the following data: Substance ΔH?f (kJ/mol) A -235 B -381 C 197 D -477 Express your answer to three significant figures and include the appropriate units

Part A Calculate the standard enthalpy change for the reaction 2A+B?2C+2D Use the following data: Substance ΔH?f (kJ/mol) A -235 B -381 C 197 D -477 Express your answer to three significant figures and include the appropriate units

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Part A Calculate the standard enthalpy change for the reaction 2A+B?2C+2D Use the following data: Substance ΔH?f (kJ/mol) A -235 B -381 C 197 D -477 Express your answer to three significant figures and include the appropriate units.

Part B For the reaction given in Part A, how much heat is absorbed when 3.70 mol of A reacts? Express your answer to three significant figures and include the appropriate units.