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Fermentation of glucose produces ethyl alcohol and carbon dioxide; C6H12O6(l) ? 2 C2H5OH(l) + 2 CO2(g) What is ?H°rxn (in kilojoules) if 385.3 mL of CO2 was collected over water at 20.00°C and 761.2 mm Hg? The vapor pressure of water at this temperature is 17.54 mm Hg. Species ?H°f, kJ/mol C6H12O6(l) -1260 C2H5OH(l) -277.7 CO2(g) -393.5

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