2CaCrO4 + 4CsHCO3 💧→ 2CaCO3↓ + H2Cr2O7 + 2Cs2CO3 + H2O
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The reaction of calcium chromate and caesium hydrogencarbonate yields calcium carbonate, dichromic acid, caesium carbonate, and water (Other reactions are here). This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of calcium chromate and caesium hydrogencarbonate
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 chromate and caesium hydrogencarbonate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CaCrO4 | Calcium chromate | 2 | Lewis acid | Soluble in water |
| CsHCO3 | Caesium hydrogencarbonate | 4 | Lewis base | Very soluble in water |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CaCO3 | Calcium carbonate | 2 | Lewis conjugate | Insoluble in water |
| H2Cr2O7 | Dichromic acid | 1 | Non-redox product | – |
| Cs2CO3 | Caesium carbonate | 2 | Non-redox product | – |
| H2O | Water | 1 | Non-redox product | – |
Thermodynamic changes
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 |
|---|---|---|---|---|
| CaCrO4 (aq) | -1426.3[1] | – | – | – |
| CsHCO3 (cr) | -966.1[1] | – | – | – |
| CsHCO3 (ai) | -950.27[1] | -878.78[1] | 224.3[1] | – |
* (aq):Aqueous solution, (cr):Crystalline solid, (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 |
|---|---|---|---|---|
| CaCO3 (cr) | -1207.13[1] | -1127.75[1] | 88.7[1] | 81.25[1] |
| CaCO3 (ai) | -1219.97[1] | -1081.39[1] | -110.0[1] | – |
| H2Cr2O7 | – | – | – | – |
| Cs2CO3 (cr) | -1139.7[1] | -1054.3[1] | 204.47[1] | 123.85[1] |
| Cs2CO3 (ai) | -1193.70[1] | -1111.85[1] | 209.2[1] | – |
| Cs2CO3 (cr) 3 hydrate | -2048.1[1] | – | – | – |
| H2O (cr) | – | – | – | – |
| H2O (l) | -285.830[1] | -237.129[1] | 69.91[1] | 75.291[1] |
| H2O (g) | -241.818[1] | -228.572[1] | 188.825[1] | 33.577[1] |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (l):Liquid, (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°, -1426.3 kJ · mol−1
- ^ ΔfH°, -966.1 kJ · mol−1
- ^ ΔfH°, -950.27 kJ · mol−1
- ^ ΔfG°, -878.78 kJ · mol−1
- ^ S°, 224.3 J · K−1 · mol−1
- ^ ΔfH°, -1207.13 kJ · mol−1
- ^ ΔfG°, -1127.75 kJ · mol−1
- ^ S°, 88.7 J · K−1 · mol−1
- ^ Cp°, 81.25 J · K−1 · mol−1
- ^ ΔfH°, -1219.97 kJ · mol−1
- ^ ΔfG°, -1081.39 kJ · mol−1
- ^ S°, -110.0 J · K−1 · mol−1
- ^ ΔfH°, -1139.7 kJ · mol−1
- ^ ΔfG°, -1054.3 kJ · mol−1
- ^ S°, 204.47 J · K−1 · mol−1
- ^ Cp°, 123.85 J · K−1 · mol−1
- ^ ΔfH°, -1193.70 kJ · mol−1
- ^ ΔfG°, -1111.85 kJ · mol−1
- ^ S°, 209.2 J · K−1 · mol−1
- ^ ΔfH°, -2048.1 kJ · mol−1
- ^ ΔfH°, -285.830 kJ · mol−1
- ^ ΔfG°, -237.129 kJ · mol−1
- ^ S°, 69.91 J · K−1 · mol−1
- ^ Cp°, 75.291 J · K−1 · mol−1
- ^ ΔfH°, -241.818 kJ · mol−1
- ^ ΔfG°, -228.572 kJ · mol−1
- ^ S°, 188.825 J · K−1 · mol−1
- ^ Cp°, 33.577 J · K−1 · mol−1