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Calculate rHrH. (The standard enthalpy of formation of liquid ethanol is 277.6 kJmol1kJmol1, of gaseous carbon dioxide is 393.5 kJmol1kJmol1, and of gaseous water is

Calculate rHrH. (The standard enthalpy of formation of liquid ethanol is 277.6 kJmol1kJmol1, of gaseous carbon dioxide is 393.5 kJmol1kJmol1, and of gaseous water is 241.8 kJmol1kJmol1.)

Express your answer in kilojoules per mole to one decimal place.

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