Standard Enthalpy

Use this for part (a)

N2H4(g) +2 H2O2(l) -> N2(g) + 4 H2O(g)

a) Calculate the enthalpy change, Delta{H}^{o}, for the above reaction using the enthalpy of formation values from the following table.

Delta{H}^{o}f (kJ/mol)

N2H4(g)                                                 95.40

H2O2(l)                                                  -187.8

H2O(g)                                                   -241.8

 

I know sort of where to begin on this with standard enthalpy, however I am not quite sure where to go and so I would like some help. Thanks! I have been working to use the formula.

 

use this equation

Delta H (reaction) = Sum of enthalpies of formation of the products - sum of enthalpies of formation of the reactants.

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