Ba(HSO4)2 + 20e− → Ba + S22− + 8O2− + 2H−
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- Reduction of barium hydrogensulfate
- Ba(HSO4)2Barium hydrogensulfate + 20e−Electron+ S22−Disulfide ion + 8O2−Oxide ion + 2H−Hydride ion⟶
Reduction of barium hydrogensulfate yields , disulfide ion, oxide 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 barium hydrogensulfate
- Ba(HSO4)2Barium hydrogensulfate + 20e−Electron+ S22−Disulfide ion + 8O2−Oxide ion + 2H−Hydride ion⟶
General equation
- Reduction of reducible species
- ReactantOxidizing agent + e− ⟶ ProductReduction product
Oxidation state of each atom
- Reduction of barium hydrogensulfate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Ba(HSO4)2 | Barium hydrogensulfate | 1 | Oxidizing | – |
| e− | Electron | 20 | – | Electron |
Products
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 |
|---|---|---|---|---|
| Ba(HSO4)2 | – | – | – | – |
| 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 |
|---|---|---|---|---|
| (cr) | 0[1] | 0[1] | 62.8[1] | 28.07[1] |
| (g) | 180[1] | 146[1] | 170.243[1] | 20.786[1] |
| S22− (ao) | 30.1[1] | 79.5[1] | 28.5[1] | – |
| O2− | – | – | – | – |
| 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)