3SrI2 + Fe2(SO4)3 💧→ 3SrSO4↓ + 2FeI3
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The reaction of strontium iodide and iron(III) sulfate yields strontium sulfate and iron(III) iodide. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of strontium iodide and iron(III) sulfate
General equation
- Precipitation reaction
- Miscible with water/Very soluble in water/Soluble in waterLewis acid + Miscible with water/Very soluble in water/Soluble in waterLewis base💧⟶ Insoluble in water/Very slightly soluble in water/Slightly soluble in waterLewis conjugate + Product(Non-redox product)
Oxidation state of each atom
- Reaction of strontium iodide and iron(III) sulfate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SrI2 | Strontium iodide | 3 | Lewis acid | Very soluble in water |
| Fe2(SO4)3 | Iron(III) sulfate | 1 | Lewis base | Soluble in water |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SrSO4 | Strontium sulfate | 3 | Lewis conjugate | Very slightly soluble in water |
| FeI3 | Iron(III) iodide | 2 | Non-redox product | – |
Thermodynamic changes
Changes in aqueous solution (1)
- Reaction of strontium iodide and iron(III) sulfate◆
ΔrG −110.8 kJ/mol K 2.58 × 1019 pK −19.41
| Standard enthalpy of reaction ΔrH° kJ · mol−1 | Standard Gibbs energy of reaction ΔrG° kJ · mol−1 | Standard entropy of reaction ΔrS° J · K−1 · mol−1 | Standard heat capacity of reaction at constant pressure ΔrCp° J · K−1 · mol−1 | |
|---|---|---|---|---|
per 1 mol of Equation | 5.8 | −110.8 | 389 | – |
per 1 mol of | 1.9 | −36.93 | 130 | – |
per 1 mol of | 5.8 | −110.8 | 389 | – |
per 1 mol of | 1.9 | −36.93 | 130 | – |
per 1 mol of | 2.9 | −55.40 | 195 | – |
Changes in aqueous solution (2)
- Reaction of strontium iodide and iron(III) sulfate
| Standard enthalpy of reaction ΔrH° kJ · mol−1 | Standard Gibbs energy of reaction ΔrG° kJ · mol−1 | Standard entropy of reaction ΔrS° J · K−1 · mol−1 | Standard heat capacity of reaction at constant pressure ΔrCp° J · K−1 · mol−1 | |
|---|---|---|---|---|
per 1 mol of Equation | 15.7 | – | – | – |
per 1 mol of | 5.23 | – | – | – |
per 1 mol of | 15.7 | – | – | – |
per 1 mol of | 5.23 | – | – | – |
per 1 mol of | 7.85 | – | – | – |
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 |
|---|---|---|---|---|
| SrI2 (cr) | -558.1[1] | – | – | 81.6[1] |
| SrI2 (g) | -272[1] | – | – | – |
| SrI2 (ai) | -656.18[1] | -662.62[1] | 190.0[1] | – |
| SrI2 (cr) 1 hydrate | -886.6[1] | – | – | 119.2[1] |
| SrI2 (cr) 2 hydrate | -1182.4[1] | – | – | 163.6[1] |
| SrI2 (cr) 6 hydrate | -2388.6[1] | – | – | 355.2[1] |
| Fe2(SO4)3 (cr) | -2581.5[1] | – | – | – |
| Fe2(SO4)3 (ai) | -2825.0[1] | -2242.8[1] | -571.5[1] | – |
* (cr):Crystalline solid, (g):Gas, (ai):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 |
|---|---|---|---|---|
| SrSO4 (cr) | -1453.1[1] | -1340.9[1] | 117[1] | – |
| SrSO4 (cr) precipitated | -1449.8[1] | – | – | – |
| SrSO4 (ai) | -1455.07[1] | -1304.00[1] | -12.6[1] | – |
| FeI3 (g) | 71[1] | – | – | – |
| FeI3 (ai) | -214.2[1] | -159.4[1] | 18.0[1] | – |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (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°, -558.1 kJ · mol−1
- ^ Cp°, 81.6 J · K−1 · mol−1
- ^ ΔfH°, -272. kJ · mol−1
- ^ ΔfH°, -656.18 kJ · mol−1
- ^ ΔfG°, -662.62 kJ · mol−1
- ^ S°, 190.0 J · K−1 · mol−1
- ^ ΔfH°, -886.6 kJ · mol−1
- ^ Cp°, 119.2 J · K−1 · mol−1
- ^ ΔfH°, -1182.4 kJ · mol−1
- ^ Cp°, 163.6 J · K−1 · mol−1
- ^ ΔfH°, -2388.6 kJ · mol−1
- ^ Cp°, 355.2 J · K−1 · mol−1
- ^ ΔfH°, -2581.5 kJ · mol−1
- ^ ΔfH°, -2825.0 kJ · mol−1
- ^ ΔfG°, -2242.8 kJ · mol−1
- ^ S°, -571.5 J · K−1 · mol−1
- ^ ΔfH°, -1453.1 kJ · mol−1
- ^ ΔfG°, -1340.9 kJ · mol−1
- ^ S°, 117. J · K−1 · mol−1
- ^ ΔfH°, -1449.8 kJ · mol−1
- ^ ΔfH°, -1455.07 kJ · mol−1
- ^ ΔfG°, -1304.00 kJ · mol−1
- ^ S°, -12.6 J · K−1 · mol−1
- ^ ΔfH°, 71. kJ · mol−1
- ^ ΔfH°, -214.2 kJ · mol−1
- ^ ΔfG°, -159.4 kJ · mol−1
- ^ S°, 18.0 J · K−1 · mol−1