3Fe3+ + [Fe(OH)4]− → 4FeOH2+
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- Reaction of iron(III) ion and tetrahydroxidoferrate(III) ion
- 3Fe3+Iron(III) ion + [Fe(OH)4]−Tetrahydroxidoferrate(III) ion4FeOH2+Iron(III) hydroxide ion⟶
The reaction of iron(III) ion and tetrahydroxidoferrate(III) ion yields iron(III) hydroxide ion (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 iron(III) ion and tetrahydroxidoferrate(III) ion
- 3Fe3+Iron(III) ion + [Fe(OH)4]−Tetrahydroxidoferrate(III) ion4FeOH2+Iron(III) hydroxide ion⟶
General equation
- Reaction of cation and anion
- CationLewis acid + AnionLewis base ⟶ ProductLewis conjugate + (H2O)
Oxidation state of each atom
- Reaction of iron(III) ion and tetrahydroxidoferrate(III) ion
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Fe3+ | Iron(III) ion | 3 | Lewis acid | Cation |
| [Fe(OH)4]− | Tetrahydroxidoferrate(III) ion | 1 | Lewis base | Anion |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| FeOH2+ | Iron(III) hydroxide ion | 4 | Lewis conjugate | – |
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 |
|---|---|---|---|---|
| Fe3+ (g) | 5712.8[1] | – | – | – |
| Fe3+ (ao) | -48.5[1] | -4.7[1] | -315.9[1] | – |
| [Fe(OH)4]− | – | – | – | – |
* (g):Gas, (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 |
|---|---|---|---|---|
| FeOH2+ (ao) | -290.8[1] | -229.41[1] | -142[1] | – |
* (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)