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4Zn(MnO4)2 + 5e → 4ZnO + Mn2+ + 7MnO4

Reduction of zinc permanganate
4Zn(MnO4)2Zinc permanganate + 5eElectron
4ZnOZinc oxide + Mn2+Manganese(II) ion + 7MnO4Permanganate ion

Reduction of zinc permanganate yields zinc oxide, manganese(II) ion, and permanganate 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 zinc permanganate
4Zn(MnO4)2Zinc permanganate + 5eElectron
4ZnOZinc oxide + Mn2+Manganese(II) ion + 7MnO4Permanganate ion

General equation

Reduction of reducible species
ReactantOxidizing agent + e
ProductReduction product

Oxidation state of each atom

Reduction of zinc permanganate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Zn(MnO4)2Zinc permanganate4
Oxidizing
eElectron5
Electron

Products

Chemical formulaNameCoefficientTypeType in general
equation
ZnOZinc oxide4
Mn2+Manganese(II) ion1
Reduced
MnO4Permanganate ion7

Thermodynamic changes

Changes in aqueous solution

Reduction of zinc permanganate
4Zn(MnO4)2Ionized aqueous solution + 5e
4ZnOCrystalline solid + Mn2+Un-ionized aqueous solution + 7MnO4Un-ionized aqueous solution
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
641
per 1 mol of
160
per 1 mol of
Electron
128
per 1 mol of
160
per 1 mol of
Manganese(II) ion
641
per 1 mol of
Permanganate ion
91.6

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
Zn(MnO4)2 (ai)-251[1]
e
* (ai):Ionized aqueous solution

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
ZnO (cr)-348.28[1]-318.30[1]43.64[1]40.25[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]
* (cr):Crystalline solid, (g):Gas, (ao):Un-ionized aqueous solution

References

List of references

  1. 1