K2[Sn(OH)6] + 4e− → K2O + [Sn(OH)3]− + 2OH− + H−
Last updated:
- Reduction of potassium hexahydroxidostannate(IV)
- K2[Sn(OH)6]Potassium hexahydroxidostannate(IV) + 4e−ElectronK2OPotassium oxide + [Sn(OH)3]−Trihydroxidostannate(II) ion + 2OH−Hydroxide ion + H−Hydride ion⟶
Reduction of potassium hexahydroxidostannate(IV) yields potassium oxide, trihydroxidostannate(II) ion, hydroxide ion, and hydride ion (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reduction of potassium hexahydroxidostannate(IV)
- K2[Sn(OH)6]Potassium hexahydroxidostannate(IV) + 4e−ElectronK2OPotassium oxide + [Sn(OH)3]−Trihydroxidostannate(II) ion + 2OH−Hydroxide ion + H−Hydride ion⟶
General equation
- Reduction of reducible species
- ReactantOxidizing agent + e− ⟶ ProductReduction product
Oxidation state of each atom
- Reduction of potassium hexahydroxidostannate(IV)
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
K2[Sn(OH)6] | Potassium hexahydroxidostannate(IV) | 1 | Oxidizing | – |
e− | Electron | 4 | – | Electron |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
K2O | Potassium oxide | 1 | – | – |
[Sn(OH)3]− | Trihydroxidostannate(II) ion | 1 | Reduced | – |
OH− | Hydroxide ion | 2 | – | – |
H− | Hydride ion | 1 | Reduced | – |
Thermodynamic changes
Thermodynamic data of reactants
Chemical formula | Standard 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 formula | Standard 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 |
---|---|---|---|---|
K2O (cr) | -361.5[1] | -322.1[2] | 94.1[2] | 83.7[2] |
K2O (g) | -63[1] | – | – | – |
[Sn(OH)3]− | – | – | – | – |
OH− (g) | -143.5[1] | – | – | – |
OH− (ao) | -229.994[1] | -157.244[1] | -10.75[1] | -148.5[1] |
H− (g) | 138.99[1] | – | – | – |
* (cr):Crystalline solid, (g):Gas, (ao):Un-ionized aqueous solution
References
List of references
- 1Janiel J. Reed (1989)The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI UnitsNational Institute of Standards and Technology (NIST)
- 2James G. Speight (2017)Lange's Handbook of Chemistry, 17th editionMcGraw Hill Education
- ^ ΔfG°, -322.1 kJ · mol−1 - p.280
- ^ S°, 94.1 J · K−1 · mol−1 - p.280
- ^ Cp°, 83.7 J · K−1 · mol−1 - p.280