Pb6(OH)84+ + 2O2− → 6PbO↓ + 4H2O
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- Reaction of hexalead(II) octahydroxide ion and oxide ion
The reaction of hexalead(II) octahydroxide ion and oxide ion yields lead(II) oxide and water (Other reactions are here). This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of hexalead(II) octahydroxide ion and oxide ion
General equation
- Reaction of cation and anion
- CationLewis acid + AnionLewis base ⟶ ProductLewis conjugate + (H2O)
- Precipitation reaction of cation and anion
- CationLewis acid + AnionLewis base ⟶ Insoluble in water/Very slightly soluble in water/Slightly soluble in waterLewis conjugate + (H2O)
Oxidation state of each atom
- Reaction of hexalead(II) octahydroxide ion and oxide ion
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Pb6(OH)84+ | Hexalead(II) octahydroxide ion | 1 | Lewis acid | Cation |
| O2− | Oxide ion | 2 | Lewis base | Anion |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| PbO | Lead(II) oxide | 6 | Lewis conjugate | – Insoluble in water |
| H2O | Water | 4 | – | Water |
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 |
|---|---|---|---|---|
| Pb6(OH)84+ (ao) | -2089.9[1] | -1800.2[1] | 498[1] | – |
| O2− | – | – | – | – |
* (ao):Un-ionized aqueous solution
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 |
|---|---|---|---|---|
| PbO (cr) massicot, yellow | -217.32[1] | -187.89[1] | 68.70[1] | 45.77[1] |
| PbO (cr) litharge, red | -218.99[1] | -188.93[1] | 66.5[1] | 45.81[1] |
| PbO (cr) 1/3 hydrate | – | -266.5[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] |
* (cr):Crystalline solid, (l):Liquid, (g):Gas
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°, -2089.9 kJ · mol−1
- ^ ΔfG°, -1800.2 kJ · mol−1
- ^ S°, 498. J · K−1 · mol−1
- ^ ΔfH°, -217.32 kJ · mol−1
- ^ ΔfG°, -187.89 kJ · mol−1
- ^ S°, 68.70 J · K−1 · mol−1
- ^ Cp°, 45.77 J · K−1 · mol−1
- ^ ΔfH°, -218.99 kJ · mol−1
- ^ ΔfG°, -188.93 kJ · mol−1
- ^ S°, 66.5 J · K−1 · mol−1
- ^ Cp°, 45.81 J · K−1 · mol−1
- ^ ΔfG°, -266.5 kJ · 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