SrI2 + Rb2CO3 💧→ SrCO3↓ + 2RbI
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The reaction of strontium iodide and rubidium carbonate yields strontium carbonate 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 carbonate
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 carbonate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SrI2 | Strontium iodide | 1 | Lewis acid | Very soluble in water |
| Rb2CO3 | Rubidium carbonate | 1 | Lewis base | Very soluble in water |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SrCO3 | Strontium carbonate | 1 | Lewis conjugate | Insoluble in water |
| RbI | Rubidium iodide | 2 | Non-redox product | – |
Thermodynamic changes
Changes in standard condition
- Reaction of strontium iodide and rubidium carbonate
| 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 | −193.6 | – | – | −11.4 |
per 1 mol of | −193.6 | – | – | −11.4 |
per 1 mol of | −193.6 | – | – | −11.4 |
per 1 mol of | −193.6 | – | – | −11.4 |
per 1 mol of | −96.80 | – | – | −5.70 |
Changes in aqueous solution
- Reaction of strontium iodide and rubidium carbonate◆
ΔrG −52.8 kJ/mol K 1.78 × 109 pK −9.25
| 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 | 2.9 | −52.8 | 186.1 | – |
per 1 mol of | 2.9 | −52.8 | 186.1 | – |
per 1 mol of | 2.9 | −52.8 | 186.1 | – |
per 1 mol of | 2.9 | −52.8 | 186.1 | – |
per 1 mol of | 1.4 | −26.4 | 93.05 | – |
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] |
| Rb2CO3 (cr) | -1136.0[1] | -1051.0[1] | 181.33[1] | 117.61[1] |
| Rb2CO3 (ai) | -1179.47[1] | -1095.78[1] | 186.2[1] | – |
| Rb2CO3 (cr) 1 hydrate | -1448.5[1] | – | – | – |
| Rb2CO3 (cr) 1.5 hydrate | -1604.5[1] | – | – | – |
| Rb2CO3 (cr) 3 hydrate | -2048.1[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 |
|---|---|---|---|---|
| SrCO3 (cr) | -1220.1[1] | -1140.1[1] | 97.1[1] | 81.42[1] |
| SrCO3 (ai) | -1222.94[1] | -1087.29[1] | -89.5[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, (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°, -1136.0 kJ · mol−1
- ^ ΔfG°, -1051.0 kJ · mol−1
- ^ S°, 181.33 J · K−1 · mol−1
- ^ Cp°, 117.61 J · K−1 · mol−1
- ^ ΔfH°, -1179.47 kJ · mol−1
- ^ ΔfG°, -1095.78 kJ · mol−1
- ^ S°, 186.2 J · K−1 · mol−1
- ^ ΔfH°, -1448.5 kJ · mol−1
- ^ ΔfH°, -1604.5 kJ · mol−1
- ^ ΔfH°, -2048.1 kJ · mol−1
- ^ ΔfH°, -1220.1 kJ · mol−1
- ^ ΔfG°, -1140.1 kJ · mol−1
- ^ S°, 97.1 J · K−1 · mol−1
- ^ Cp°, 81.42 J · K−1 · mol−1
- ^ ΔfH°, -1222.94 kJ · mol−1
- ^ ΔfG°, -1087.29 kJ · mol−1
- ^ S°, -89.5 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