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Cr(NO3)3 + 10e− → Cr3+ + N2↑ + NO3− + 6O2−

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Reduction of chromium(III) nitrate
Cr(NO3)3Chromium(III) nitrate + 10e−Electron
⟶
Cr3+Chromium(III) ion + N2↑Nitrogen + NO3−Nitrate ion + 6O2−Oxide ion

Reduction of chromium(III) nitrate yields chromium(III) ion, nitrogen, nitrate ion, and oxide ion (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

Reduction of chromium(III) nitrate
Cr(NO3)3Chromium(III) nitrate + 10e−Electron
⟶
Cr3+Chromium(III) ion + N2↑Nitrogen + NO3−Nitrate ion + 6O2−Oxide ion

General equation

Reduction of reducible species
ReactantOxidizing agent + e−
⟶
ProductReduction product

Oxidation state of each atom

Reduction of chromium(III) nitrate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Cr(NO3)3Chromium(III) nitrate1
Oxidizing
–
e−Electron10
–
Electron

Products

Chemical formulaNameCoefficientTypeType in general
equation
Cr3+Chromium(III) ion1
–
–
N2Nitrogen1
Reduced
–
NO3−Nitrate ion1
–
–
O2−Oxide ion6
–
–

Thermodynamic changes

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
Cr(NO3)3 (cr)
9 hydrate
–––456.9[1]
e−––––
* (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
Cr3+ (g)5648.4[1]–––
N2 (g)0[1]0[1]191.61[1]29.125[1]
NO3− (ao)-207.36[1]-111.25[1]146.4[1]-86.6[1]
O2−––––
* (g):Gas, (ao):Un-ionized aqueous solution

References

List of references

  1. 1
    Janiel J. Reed (1989)
    The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI Units
    National Institute of Standards and Technology (NIST)