3Ca(HSO4)2 → 3Ca2+ + 2HO2− + 6SO3 + 2H2O + 4e−
Last updated:
- Oxidation of calcium hydrogensulfate
- 3Ca(HSO4)2Calcium hydrogensulfate3Ca2+Calcium ion + 2HO2−Hydrogenperoxide ion + 6SO3Sulfur trioxide + 2H2OWater + 4e−Electron⟶
Oxidation of calcium hydrogensulfate yields calcium ion, hydrogenperoxide ion, sulfur trioxide, water (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Oxidation of calcium hydrogensulfate
- 3Ca(HSO4)2Calcium hydrogensulfate3Ca2+Calcium ion + 2HO2−Hydrogenperoxide ion + 6SO3Sulfur trioxide + 2H2OWater + 4e−Electron⟶
General equation
- Oxidation of oxidizable species
- ReactantReducing agent ⟶ ProductOxidation product + e−
Oxidation state of each atom
- Oxidation of calcium hydrogensulfate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Ca(HSO4)2 | Calcium hydrogensulfate | 3 | Reducing | – |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Ca2+ | Calcium ion | 3 | – | – |
| HO2− | Hydrogenperoxide ion | 2 | Oxidized | – |
| SO3 | Sulfur trioxide | 6 | – | – |
| H2O | Water | 2 | – | – |
| e− | Electron | 4 | – | Electron |
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 |
|---|---|---|---|---|
| Ca(HSO4)2 | – | – | – | – |
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 |
|---|---|---|---|---|
| Ca2+ (g) | 1925.90[1] | – | – | – |
| Ca2+ (ao) | -542.83[1] | -553.58[1] | -53.1[1] | – |
| HO2− (ao) | -160.33[1] | -67.3[1] | 23.8[1] | – |
| SO3 (cr) β | -454.51[1] | -374.21[1] | 70.7[1] | – |
| SO3 (l) | -441.04[1] | -373.75[1] | 113.8[1] | – |
| SO3 (g) | -395.72[1] | -371.06[1] | 256.76[1] | 50.67[1] |
| H2O (cr) | – | – | – | – |
| H2O (l) | -285.830[1] | -237.129[1] | 69.91[1] | 75.291[1] |
| H2O (g) | -241.818[1] | -228.572[1] | 188.825[1] | 33.577[1] |
| e− | – | – | – | – |
* (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid, (l):Liquid
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)
- ^ ΔfH°, 1925.90 kJ · mol−1
- ^ ΔfH°, -542.83 kJ · mol−1
- ^ ΔfG°, -553.58 kJ · mol−1
- ^ S°, -53.1 J · K−1 · mol−1
- ^ ΔfH°, -160.33 kJ · mol−1
- ^ ΔfG°, -67.3 kJ · mol−1
- ^ S°, 23.8 J · K−1 · mol−1
- ^ ΔfH°, -454.51 kJ · mol−1
- ^ ΔfG°, -374.21 kJ · mol−1
- ^ S°, 70.7 J · K−1 · mol−1
- ^ ΔfH°, -441.04 kJ · mol−1
- ^ ΔfG°, -373.75 kJ · mol−1
- ^ S°, 113.8 J · K−1 · mol−1
- ^ ΔfH°, -395.72 kJ · mol−1
- ^ ΔfG°, -371.06 kJ · mol−1
- ^ S°, 256.76 J · K−1 · mol−1
- ^ Cp°, 50.67 J · K−1 · mol−1
- ^ ΔfH°, -285.830 kJ · mol−1
- ^ ΔfG°, -237.129 kJ · mol−1
- ^ S°, 69.91 J · K−1 · mol−1
- ^ Cp°, 75.291 J · K−1 · mol−1
- ^ ΔfH°, -241.818 kJ · mol−1
- ^ ΔfG°, -228.572 kJ · mol−1
- ^ S°, 188.825 J · K−1 · mol−1
- ^ Cp°, 33.577 J · K−1 · mol−1