Ca(NO3)2 + 2RbF 💧→ CaF2↓ + 2RbNO3
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The reaction of calcium nitrate and rubidium fluoride yields calcium fluoride and rubidium nitrate. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of calcium nitrate 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 calcium nitrate and rubidium fluoride
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Ca(NO3)2 | Calcium nitrate | 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 |
|---|---|---|---|---|
| CaF2 | Calcium fluoride | 1 | Lewis conjugate | Insoluble in water |
| RbNO3 | Rubidium nitrate | 2 | Non-redox product | – |
Thermodynamic changes
Changes in standard condition
- Reaction of calcium nitrate 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 | −155.9 | – | – | – |
per 1 mol of | −155.9 | – | – | – |
per 1 mol of | −77.95 | – | – | – |
per 1 mol of | −155.9 | – | – | – |
per 1 mol of | −77.95 | – | – | – |
Changes in aqueous solution
- Reaction of calcium nitrate and rubidium fluoride◆
ΔrG −56.1 kJ/mol K 6.73 × 109 pK −9.83
| 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 | −11.5 | −56.1 | 149.8 | – |
per 1 mol of | −11.5 | −56.1 | 149.8 | – |
per 1 mol of | −5.75 | −28.1 | 74.90 | – |
per 1 mol of | −11.5 | −56.1 | 149.8 | – |
per 1 mol of | −5.75 | −28.1 | 74.90 | – |
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 |
|---|---|---|---|---|
| Ca(NO3)2 (cr) | -938.39[1] | -743.07[1] | 193.3[1] | 149.37[1] |
| Ca(NO3)2 (ai) | -957.55[1] | -776.09[1] | 239.7[1] | – |
| Ca(NO3)2 (cr) 2 hydrate | -1540.76[1] | -1229.11[1] | 269.4[1] | – |
| Ca(NO3)2 (cr) 3 hydrate | -1838.0[1] | -1471.7[1] | 319.2[1] | – |
| Ca(NO3)2 (cr) 4 hydrate | -2132.33[1] | -1713.15[1] | 375.3[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, (ai):Ionized aqueous solution, (g):Gas
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 |
|---|---|---|---|---|
| CaF2 (cr) | -1219.6[1] | -1167.3[1] | 68.87[1] | 67.03[1] |
| CaF2 (g) | -781.6[1] | -790.4[1] | 274.37[1] | 51.25[1] |
| CaF2 (ai) | -1208.09[1] | -1111.15[1] | -80.8[1] | – |
| RbNO3 (cr) | -495.05[1] | -395.78[1] | 147.3[1] | 102.1[1] |
| RbNO3 (ai) | -458.52[1] | -395.24[1] | 267.8[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°, -938.39 kJ · mol−1
- ^ ΔfG°, -743.07 kJ · mol−1
- ^ S°, 193.3 J · K−1 · mol−1
- ^ Cp°, 149.37 J · K−1 · mol−1
- ^ ΔfH°, -957.55 kJ · mol−1
- ^ ΔfG°, -776.09 kJ · mol−1
- ^ S°, 239.7 J · K−1 · mol−1
- ^ ΔfH°, -1540.76 kJ · mol−1
- ^ ΔfG°, -1229.11 kJ · mol−1
- ^ S°, 269.4 J · K−1 · mol−1
- ^ ΔfH°, -1838.0 kJ · mol−1
- ^ ΔfG°, -1471.7 kJ · mol−1
- ^ S°, 319.2 J · K−1 · mol−1
- ^ ΔfH°, -2132.33 kJ · mol−1
- ^ ΔfG°, -1713.15 kJ · mol−1
- ^ S°, 375.3 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°, -1219.6 kJ · mol−1
- ^ ΔfG°, -1167.3 kJ · mol−1
- ^ S°, 68.87 J · K−1 · mol−1
- ^ Cp°, 67.03 J · K−1 · mol−1
- ^ ΔfH°, -781.6 kJ · mol−1
- ^ ΔfG°, -790.4 kJ · mol−1
- ^ S°, 274.37 J · K−1 · mol−1
- ^ Cp°, 51.25 J · K−1 · mol−1
- ^ ΔfH°, -1208.09 kJ · mol−1
- ^ ΔfG°, -1111.15 kJ · mol−1
- ^ S°, -80.8 J · K−1 · mol−1
- ^ ΔfH°, -495.05 kJ · mol−1
- ^ ΔfG°, -395.78 kJ · mol−1
- ^ S°, 147.3 J · K−1 · mol−1
- ^ Cp°, 102.1 J · K−1 · mol−1
- ^ ΔfH°, -458.52 kJ · mol−1
- ^ ΔfG°, -395.24 kJ · mol−1
- ^ S°, 267.8 J · K−1 · mol−1