SrI2 + 2RbF 💧→ SrF2↓ + 2RbI
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The reaction of strontium iodide and rubidium fluoride yields strontium fluoride and rubidium 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 rubidium fluoride
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 rubidium fluoride
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SrI2 | Strontium iodide | 1 | Lewis acid | Very soluble in water |
| RbF | Rubidium fluoride | 2 | Lewis base | Very soluble in water |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SrF2 | Strontium fluoride | 1 | Lewis conjugate | Very slightly soluble in water |
| RbI | Rubidium iodide | 2 | Non-redox product | – |
Thermodynamic changes
Changes in standard condition
- Reaction of strontium iodide and rubidium fluoride
| 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 | −210.4 | – | – | – |
per 1 mol of | −210.4 | – | – | – |
per 1 mol of | −105.2 | – | – | – |
per 1 mol of | −210.4 | – | – | – |
per 1 mol of | −105.2 | – | – | – |
Changes in aqueous solution
- Reaction of strontium iodide and rubidium fluoride◆
ΔrG −47.8 kJ/mol K 2.37 × 108 pK −8.37
| 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 | −5.2 | −47.8 | 142.3 | – |
per 1 mol of | −5.2 | −47.8 | 142.3 | – |
per 1 mol of | −2.6 | −23.9 | 71.15 | – |
per 1 mol of | −5.2 | −47.8 | 142.3 | – |
per 1 mol of | −2.6 | −23.9 | 71.15 | – |
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] |
| RbF (cr) | -557.7[1] | – | – | – |
| RbF (g) | -331.4[1] | -349.0[1] | 237.09[1] | 35.69[1] |
| RbF (ai) | -583.79[1] | -562.77[1] | 107.5[1] | – |
| RbF (cr) 1.5 hydrate | -1013.8[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 |
|---|---|---|---|---|
| SrF2 (cr) | -1216.3[1] | -1164.8[1] | 82.13[1] | 70.00[1] |
| SrF2 (g) | -764.4[1] | -775.3[1] | 291.06[1] | 52.97[1] |
| RbI (cr) | -333.80[1] | -328.86[1] | 118.41[1] | 53.18[1] |
| RbI (g) | -134.3[1] | -174.1[1] | 268.81[1] | 37.36[1] |
| RbI (ai) | -306.35[1] | -335.56[1] | 232.6[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°, -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°, -557.7 kJ · mol−1
- ^ ΔfH°, -331.4 kJ · mol−1
- ^ ΔfG°, -349.0 kJ · mol−1
- ^ S°, 237.09 J · K−1 · mol−1
- ^ Cp°, 35.69 J · K−1 · mol−1
- ^ ΔfH°, -583.79 kJ · mol−1
- ^ ΔfG°, -562.77 kJ · mol−1
- ^ S°, 107.5 J · K−1 · mol−1
- ^ ΔfH°, -1013.8 kJ · mol−1
- ^ ΔfH°, -1216.3 kJ · mol−1
- ^ ΔfG°, -1164.8 kJ · mol−1
- ^ S°, 82.13 J · K−1 · mol−1
- ^ Cp°, 70.00 J · K−1 · mol−1
- ^ ΔfH°, -764.4 kJ · mol−1
- ^ ΔfG°, -775.3 kJ · mol−1
- ^ S°, 291.06 J · K−1 · mol−1
- ^ Cp°, 52.97 J · K−1 · mol−1
- ^ ΔfH°, -333.80 kJ · mol−1
- ^ ΔfG°, -328.86 kJ · mol−1
- ^ S°, 118.41 J · K−1 · mol−1
- ^ Cp°, 53.18 J · K−1 · mol−1
- ^ ΔfH°, -134.3 kJ · mol−1
- ^ ΔfG°, -174.1 kJ · mol−1
- ^ S°, 268.81 J · K−1 · mol−1
- ^ Cp°, 37.36 J · K−1 · mol−1
- ^ ΔfH°, -306.35 kJ · mol−1
- ^ ΔfG°, -335.56 kJ · mol−1
- ^ S°, 232.6 J · K−1 · mol−1