MgI2 + Li2SO3 💧→ MgSO3↓ + 2LiI
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The reaction of magnesium iodide and lithium sulfite yields magnesium sulfite and lithium iodide. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of magnesium iodide and lithium sulfite
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 magnesium iodide and lithium sulfite
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| MgI2 | Magnesium iodide | 1 | Lewis acid | Very soluble in water |
| Li2SO3 | Lithium sulfite | 1 | Lewis base | Soluble in water |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| MgSO3 | Magnesium sulfite | 1 | Lewis conjugate | Slightly soluble in water |
| LiI | Lithium iodide | 2 | Non-redox product | – |
Thermodynamic changes
Changes in standard condition
- Reaction of magnesium iodide and lithium sulfite
| 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 | −8.1 | – | – | – |
per 1 mol of | −8.1 | – | – | – |
per 1 mol of | −8.1 | – | – | – |
per 1 mol of | −8.1 | – | – | – |
per 1 mol of | −4.0 | – | – | – |
Changes in aqueous solution
- Reaction of magnesium iodide and lithium sulfite
| 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 | 78.6 | – | – | – |
per 1 mol of | 78.6 | – | – | – |
per 1 mol of | 78.6 | – | – | – |
per 1 mol of | 78.6 | – | – | – |
per 1 mol of | 39.3 | – | – | – |
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 |
|---|---|---|---|---|
| MgI2 (cr) | -364.0[1] | -358.2[1] | 129.7[1] | – |
| MgI2 (g) | -172[1] | – | – | – |
| MgI2 (ai) | -577.22[1] | -558.1[1] | 84.5[1] | – |
| Li2SO3 (cr) | -1177.0[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 |
|---|---|---|---|---|
| MgSO3 (cr) | -1008.3[1] | -923.8[1] | 87.9[1] | – |
| MgSO3 (cr) 3 hydrate | -1931.8[1] | -1674.7[1] | 209.2[1] | – |
| MgSO3 (cr) 6 hydrate | -2817.5[1] | -2385.4[1] | 322.2[1] | – |
| LiI (cr) | -270.41[1] | -270.29[1] | 86.78[1] | 51.04[1] |
| LiI (g) | -81.09[1] | -124.34[1] | 232.321[1] | 34.64[1] |
| LiI (ai) | -333.67[1] | -344.8[1] | 124.7[1] | -73.6[1] |
| LiI (cr) 1 hydrate | -590.32[1] | -531.3[1] | 123.0[1] | – |
| LiI (cr) 2 hydrate | -890.40[1] | -780.2[1] | 184[1] | – |
| LiI (cr) 3 hydrate | -1192.15[1] | -1032.13[1] | 250.2[1] | – |
* (cr):Crystalline solid, (g):Gas, (ai):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)
- ^ ΔfH°, -364.0 kJ · mol−1
- ^ ΔfG°, -358.2 kJ · mol−1
- ^ S°, 129.7 J · K−1 · mol−1
- ^ ΔfH°, -172. kJ · mol−1
- ^ ΔfH°, -577.22 kJ · mol−1
- ^ ΔfG°, -558.1 kJ · mol−1
- ^ S°, 84.5 J · K−1 · mol−1
- ^ ΔfH°, -1177.0 kJ · mol−1
- ^ ΔfH°, -1008.3 kJ · mol−1
- ^ ΔfG°, -923.8 kJ · mol−1
- ^ S°, 87.9 J · K−1 · mol−1
- ^ ΔfH°, -1931.8 kJ · mol−1
- ^ ΔfG°, -1674.7 kJ · mol−1
- ^ S°, 209.2 J · K−1 · mol−1
- ^ ΔfH°, -2817.5 kJ · mol−1
- ^ ΔfG°, -2385.4 kJ · mol−1
- ^ S°, 322.2 J · K−1 · mol−1
- ^ ΔfH°, -270.41 kJ · mol−1
- ^ ΔfG°, -270.29 kJ · mol−1
- ^ S°, 86.78 J · K−1 · mol−1
- ^ Cp°, 51.04 J · K−1 · mol−1
- ^ ΔfH°, -81.09 kJ · mol−1
- ^ ΔfG°, -124.34 kJ · mol−1
- ^ S°, 232.321 J · K−1 · mol−1
- ^ Cp°, 34.64 J · K−1 · mol−1
- ^ ΔfH°, -333.67 kJ · mol−1
- ^ ΔfG°, -344.8 kJ · mol−1
- ^ S°, 124.7 J · K−1 · mol−1
- ^ Cp°, -73.6 J · K−1 · mol−1
- ^ ΔfH°, -590.32 kJ · mol−1
- ^ ΔfG°, -531.3 kJ · mol−1
- ^ S°, 123.0 J · K−1 · mol−1
- ^ ΔfH°, -890.40 kJ · mol−1
- ^ ΔfG°, -780.2 kJ · mol−1
- ^ S°, 184. J · K−1 · mol−1
- ^ ΔfH°, -1192.15 kJ · mol−1
- ^ ΔfG°, -1032.13 kJ · mol−1
- ^ S°, 250.2 J · K−1 · mol−1