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Kaplan: Bond Enthalpy

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TieuBachHo

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I have no clue and need help on this one.

A second metabolic process involves the net production of 2 ATP and 2 NADH from 2 ADP and 2 NAD+. If the conversion of these molecules is endothermic and adds 443.5 kJ to the overall enthalpy of the rxn, find the enthalpy for a "high-energy" phosphate bond.

Ans = 338.5 kJ/mol

Given but I am not sure it's necessary.

O=O 497
C=O 805
O-H 464
C-C 347

Thanks!!!
 
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