Problem: Using values from Appendix C, calculate the value of ΔH° for each of the following reactions.4 NH3(g) + O2(g) → 2 N2H4(g) + 2 H2O(l)Express your answer using five significant figures.

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Recall that ΔH˚rxn can be calculated from the enthalpy of formation (ΔH˚f) of the reactants and products involved:


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Using values from Appendix C, calculate the value of ΔH° for each of the following reactions.

4 NH3(g) + O2(g) → 2 N2H4(g) + 2 H2O(l)

Express your answer using five significant figures.

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