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Show all work and calculations. Find the ΔH for the target reaction below, given the following...

Show all work and calculations.

Find the ΔH for the target reaction below, given the following step reactions and subsequent ΔH values:

  1. N2H4(l) + CH4O(l) → CH2O(g) + N2(g) + 3H2 (g)

  3. 2NH3(g) → N2H4(l) + H2(g)                ΔH = 22.5 kJ

  4.                            2NH3(g) → N2(g) + 3H 2(g)                 ΔH = 57.5 kJ

    CH2O(g) + H2(g) → CH 4O(l)           ΔH = 81.2 kJ

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