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2K2[Sn(OH)6] + 6e → 4KOH + 2[Sn(OH)3] + 2O2− + H2

Reduction of potassium hexahydroxidostannate(IV)
2K2[Sn(OH)6]Potassium hexahydroxidostannate(IV) + 6eElectron
4KOHPotassium hydroxide + 2[Sn(OH)3]Trihydroxidostannate(II) ion + 2O2−Oxide ion + H2Hydrogen

Reduction of potassium hexahydroxidostannate(IV) yields potassium hydroxide, trihydroxidostannate(II) ion, oxide ion, and hydrogen (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 potassium hexahydroxidostannate(IV)
2K2[Sn(OH)6]Potassium hexahydroxidostannate(IV) + 6eElectron
4KOHPotassium hydroxide + 2[Sn(OH)3]Trihydroxidostannate(II) ion + 2O2−Oxide ion + H2Hydrogen

General equation

Reduction of reducible species
ReactantOxidizing agent + e
ProductReduction product

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
K2[Sn(OH)6]Potassium hexahydroxidostannate(IV)2
Oxidizing
eElectron6
Electron

Products

Chemical formulaNameCoefficientTypeType in general
equation
KOHPotassium hydroxide4
[Sn(OH)3]Trihydroxidostannate(II) ion2
Reduced
O2−Oxide ion2
H2Hydrogen1
Reduced

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
K2[Sn(OH)6]
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
KOH (cr)-424.764[1]-379.08[1]78.9[1]64.9[1]
KOH (g)-231.0[1]-232.6[1]238.3[1]49.20[1]
KOH (ai)-482.37[1]-440.50[1]91.6[1]-126.8[1]
KOH (cr)
1 hydrate
-748.9[1]-645.1[1]117.2[1]
KOH (cr)
2 hydrate
-1051.0[1]-887.3[1]150.6[1]
[Sn(OH)3]
O2−
H2 (g)0[1]0[1]130.684[1]28.824[1]
H2 (ao)-4.2[1]17.6[1]577[1]
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (ao):Un-ionized aqueous solution

References

List of references

  1. 1