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4SnBr2 + 10KMnO4 → K2SnO3 + 8KBrO3 + 10MnO + 3SnO

The reaction of tin(II) bromide and potassium permanganate yields potassium metastannate, potassium bromate, manganese(II) oxide, and tin(II) oxide (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

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
SnBr2Tin(II) bromide4
Reducing
Reducing
KMnO4Potassium permanganate10
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
K2SnO3Potassium metastannate1
Oxidized
KBrO3Potassium bromate8
Oxidized
MnOManganese(II) oxide10
Reduced
SnOTin(II) oxide3

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
SnBr2 (cr)-243.5[1]
KMnO4 (cr)-837.2[1]-737.6[1]171.71[1]117.57[1]
KMnO4 (ai)-793.8[1]-730.5[1]293.7[1]-60.2[1]
* (cr):Crystalline solid, (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
K2SnO3
KBrO3 (cr)-360.24[1]-271.16[1]149.16[1]105.19[1]
KBrO3 (ai)-319.45[1]-264.67[1]264.22[1]
MnO (cr)-385.22[1]-362.90[1]59.71[1]45.44[1]
MnO (g)124.22[1]
SnO (cr)-285.8[1]-256.9[1]56.5[1]44.31[1]
SnO (g)15.1[1]-8.4[1]232.11[1]31.59[1]
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (g):Gas

References

List of references

  1. 1