SrBr2 + Rb2CO3 💧→ SrCO3↓ + 2RbBr
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The reaction of strontium bromide and rubidium carbonate yields strontium carbonate and rubidium bromide. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of strontium bromide 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 bromide and rubidium carbonate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SrBr2 | Strontium bromide | 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 |
| RbBr | Rubidium bromide | 2 | Non-redox product | – |
Thermodynamic changes
Changes in standard condition
- Reaction of strontium bromide and rubidium carbonate◆
ΔrG −155.6 kJ/mol K 1.82 × 1027 pK −27.26
| 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 | −155.7 | −155.6 | 0.6 | −5.86 |
per 1 mol of | −155.7 | −155.6 | 0.60 | −5.86 |
per 1 mol of | −155.7 | −155.6 | 0.60 | −5.86 |
per 1 mol of | −155.7 | −155.6 | 0.60 | −5.86 |
per 1 mol of | −77.85 | −77.80 | 0.30 | −2.93 |
Changes in aqueous solution
- Reaction of strontium bromide 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 | 2.8 | −52.8 | 186.6 | – |
per 1 mol of | 2.8 | −52.8 | 186.6 | – |
per 1 mol of | 2.8 | −52.8 | 186.6 | – |
per 1 mol of | 2.8 | −52.8 | 186.6 | – |
per 1 mol of | 1.4 | −26.4 | 93.30 | – |
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 |
|---|---|---|---|---|
| SrBr2 (cr) | -717.6[1] | -697.1[1] | 135.10[1] | 75.35[1] |
| SrBr2 (g) | -410[1] | -444[1] | 323.5[1] | 60.7[1] |
| SrBr2 (ai) | -788.89[1] | -767.39[1] | 132.2[1] | – |
| SrBr2 (cr) 1 hydrate | -1031.4[1] | -954.3[1] | 180[1] | 120.9[1] |
| SrBr2 (cr) 6 hydrate | -2531.3[1] | -2174.1[1] | 406[1] | 343.5[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] | – |
| RbBr (cr) | -394.59[1] | -381.79[1] | 109.96[1] | 52.84[1] |
| RbBr (g) | -182.8[1] | -215.1[1] | 261.02[1] | 37.20[1] |
| RbBr (ai) | -372.71[1] | -387.94[1] | 203.93[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°, -717.6 kJ · mol−1
- ^ ΔfG°, -697.1 kJ · mol−1
- ^ S°, 135.10 J · K−1 · mol−1
- ^ Cp°, 75.35 J · K−1 · mol−1
- ^ ΔfH°, -410. kJ · mol−1
- ^ ΔfG°, -444. kJ · mol−1
- ^ S°, 323.5 J · K−1 · mol−1
- ^ Cp°, 60.7 J · K−1 · mol−1
- ^ ΔfH°, -788.89 kJ · mol−1
- ^ ΔfG°, -767.39 kJ · mol−1
- ^ S°, 132.2 J · K−1 · mol−1
- ^ ΔfH°, -1031.4 kJ · mol−1
- ^ ΔfG°, -954.3 kJ · mol−1
- ^ S°, 180. J · K−1 · mol−1
- ^ Cp°, 120.9 J · K−1 · mol−1
- ^ ΔfH°, -2531.3 kJ · mol−1
- ^ ΔfG°, -2174.1 kJ · mol−1
- ^ S°, 406. J · K−1 · mol−1
- ^ Cp°, 343.5 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°, -394.59 kJ · mol−1
- ^ ΔfG°, -381.79 kJ · mol−1
- ^ S°, 109.96 J · K−1 · mol−1
- ^ Cp°, 52.84 J · K−1 · mol−1
- ^ ΔfH°, -182.8 kJ · mol−1
- ^ ΔfG°, -215.1 kJ · mol−1
- ^ S°, 261.02 J · K−1 · mol−1
- ^ Cp°, 37.20 J · K−1 · mol−1
- ^ ΔfH°, -372.71 kJ · mol−1
- ^ ΔfG°, -387.94 kJ · mol−1
- ^ S°, 203.93 J · K−1 · mol−1