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22H2 + 2Fe(NO3)3 → 2Fe(OH)2 + 3N2H4 + 14H2O

The reaction of hydrogen and iron(III) nitrate yields iron(II) hydroxide, hydrazine, and water (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:

Table of contents
  1. 1Reaction data
  2. 2Thermodynamic changes
  3. 3References
  4. 4Related reactions
  5. 5Related categories

Reaction data

Chemical equation

General equation

Reaction of reducing species and oxidizing species
Reducing speciesReducing agent + Oxidizing speciesOxidizing agent
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reaction of hydrogen and iron(III) nitrate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
H2Hydrogen22
Reducing
Reducing
Fe(NO3)3Iron(III) nitrate2
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
Fe(OH)2Iron(II) hydroxide2
Redoxed product
N2H4Hydrazine3
Redoxed product
H2OWater14
Oxidized

Thermodynamic changes

Changes in aqueous solution (1)

Reaction of hydrogen and iron(III) nitrate
ΔrG−3619.1 kJ/mol
K1.09 × 10634
pK−634.04
22H2Un-ionized aqueous solution + 2Fe(NO3)3Ionized aqueous solution
2Fe(OH)2Crystalline solidprecipitated + 3N2H4Un-ionized aqueous solution + 14H2OLiquid
Standard enthalpy
of reaction
ΔrH°
kJ · mol−1
Standard
Gibbs energy
of reaction
ΔrG°
kJ · mol−1
Standard entropy
of reaction
ΔrS°
J · K−1 · mol−1
Standard heat
capacity of reaction
at constant pressure
ΔrCp°
J · K−1 · mol−1
per 1 mol of
Equation
−3602.9−3619.1−11372
per 1 mol of
−163.77−164.50−516.91
per 1 mol of
−1801.5−1809.5−5686.0
per 1 mol of
−1801.5−1809.5−5686.0
per 1 mol of
−1201.0−1206.4−3790.7
per 1 mol of
−257.35−258.51−812.29

Changes in aqueous solution (2)

Reaction of hydrogen and iron(III) nitrate
22H2Un-ionized aqueous solution + 2Fe(NO3)3Aqueous solution
2Fe(OH)2Crystalline solidprecipitated + 3N2H4Un-ionized aqueous solution + 14H2OLiquid
Standard enthalpy
of reaction
ΔrH°
kJ · mol−1
Standard
Gibbs energy
of reaction
ΔrG°
kJ · mol−1
Standard entropy
of reaction
ΔrS°
J · K−1 · mol−1
Standard heat
capacity of reaction
at constant pressure
ΔrCp°
J · K−1 · mol−1
per 1 mol of
Equation
−3594.5
per 1 mol of
−163.39
per 1 mol of
−1797.3
per 1 mol of
−1797.3
per 1 mol of
−1198.2
per 1 mol of
−256.75

Thermodynamic data of reactants

Chemical formulaStandard enthalpy
of formation
ΔfH°
kJ · mol−1
Standard Gibbs
energy of
formation
ΔfG°
kJ · mol−1
Standard
molar entropy
S°
J · K−1 · mol−1
Standard molar
heat capacity at
constant pressure
Cp°
J · K−1 · mol−1
H2 (g)0[1]0[1]130.684[1]28.824[1]
H2 (ao)-4.2[1]17.6[1]577[1]
Fe(NO3)3 (ai)-670.7[1]-338.3[1]123.4[1]
Fe(NO3)3 (aq)-674.9[1]
Fe(NO3)3 (cr)
9 hydrate
-3285.3[1]
* (g):Gas, (ao):Un-ionized aqueous solution, (ai):Ionized aqueous solution, (aq):Aqueous solution, (cr):Crystalline solid

Thermodynamic data of products

Chemical formulaStandard enthalpy
of formation
ΔfH°
kJ · mol−1
Standard Gibbs
energy of
formation
ΔfG°
kJ · mol−1
Standard
molar entropy
S°
J · K−1 · mol−1
Standard molar
heat capacity at
constant pressure
Cp°
J · K−1 · mol−1
Fe(OH)2 (cr)
precipitated
-569.0[1]-486.5[1]88[1]
Fe(OH)2 (g)-372[1]
N2H4 (l)50.63[1]149.34[1]121.21[1]98.87[1]
N2H4 (g)95.40[1]159.35[1]238.47[1]49.58[1]
N2H4 (ao)34.31[1]128.1[1]138[1]
H2O (cr)
H2O (l)-285.830[1]-237.129[1]69.91[1]75.291[1]
H2O (g)-241.818[1]-228.572[1]188.825[1]33.577[1]
* (cr):Crystalline solid, (g):Gas, (l):Liquid, (ao):Un-ionized aqueous solution

References

List of references

  1. 1