Standard Enthalpies of Formation AH of HCH₂CO2 (4) -464.2 kJ/mol AH of Na₂CO) -1130.8 kJ/mol AH of NaCH3CO) -356.5 kJ/mol AH of CO2) -393.5 kJ/mol AH of H₂O -285.8 kJ/mol 2 HCH,CO2 (aq) + Na₂CO3)2 NaCH,CO2(g) + CO2(g) + H₂O) 19. Using the information above, calculate the change of enthalpy and determine if the reaction is endothermic or exothermic.

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Chapter1: Chemical Foundations
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Standard Enthalpies of Formation
AH of HCH3CO2 (29)
-464.2 kJ /mol
AH of Na₂CO3(5)
-1130.8 kJ/mol
AH of NaCH3CO2(0)
-356.5 kJ/mol
AH of CO2(9)
-393.5 kJ/mol
AH of H₂O
-285.8 kJ/mol
2 HCH3CO2 (aq) + Na₂CO3)2 NaCH3CO2(g) + CO2(g) + H₂O)
19. Using the information above, calculate the change of enthalpy and determine if the
reaction is endothermic or exothermic.
A
AH = 670 kJ/mol and the reaction is endothermic
B AH = 670 kJ/mol and the reaction is exothermic
CAH = -3450 kJ/mol and the reaction is exothermic
DAH = -3450 kJ/mol and the reaction is endothermic
Transcribed Image Text:Standard Enthalpies of Formation AH of HCH3CO2 (29) -464.2 kJ /mol AH of Na₂CO3(5) -1130.8 kJ/mol AH of NaCH3CO2(0) -356.5 kJ/mol AH of CO2(9) -393.5 kJ/mol AH of H₂O -285.8 kJ/mol 2 HCH3CO2 (aq) + Na₂CO3)2 NaCH3CO2(g) + CO2(g) + H₂O) 19. Using the information above, calculate the change of enthalpy and determine if the reaction is endothermic or exothermic. A AH = 670 kJ/mol and the reaction is endothermic B AH = 670 kJ/mol and the reaction is exothermic CAH = -3450 kJ/mol and the reaction is exothermic DAH = -3450 kJ/mol and the reaction is endothermic
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