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Mg(MnO4)2 + 5e → Mg2+ + Mn2+ + MnO4 + 4O2−

Reduction of magnesium permanganate
Mg(MnO4)2Magnesium permanganate + 5eElectron
Mg2+Magnesium ion + Mn2+Manganese(II) ion + MnO4Permanganate ion + 4O2−Oxide ion

Reduction of magnesium permanganate yields magnesium ion, manganese(II) ion, permanganate 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 magnesium permanganate
Mg(MnO4)2Magnesium permanganate + 5eElectron
Mg2+Magnesium ion + Mn2+Manganese(II) ion + MnO4Permanganate ion + 4O2−Oxide ion

General equation

Reduction of reducible species
ReactantOxidizing agent + e
ProductReduction product

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Mg(MnO4)2Magnesium permanganate1
Oxidizing
eElectron5
Electron

Products

Chemical formulaNameCoefficientTypeType in general
equation
Mg2+Magnesium ion1
Mn2+Manganese(II) ion1
Reduced
MnO4Permanganate ion1
O2−Oxide ion4

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
Mg(MnO4)2
e

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
Mg2+ (g)2348.504[1]
Mg2+ (ao)-466.85[1]-454.8[1]-138.1[1]
Mn2+ (g)2519.69[1]
Mn2+ (ao)-220.75[1]-228.1[1]-73.6[1]50[1]
MnO4 (ao)-541.4[1]-447.2[1]191.2[1]-82.0[1]
O2−
* (g):Gas, (ao):Un-ionized aqueous solution

References

List of references

  1. 1