BaI2 + CaS2O3 💧→ BaS2O3↓ + CaI2
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The reaction of barium iodide and calcium thiosulfate yields barium thiosulfate and calcium iodide. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of barium iodide and calcium thiosulfate
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 barium iodide and calcium thiosulfate
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
BaI2 | Barium iodide | 1 | Lewis acid | Very soluble in water |
CaS2O3 | Calcium thiosulfate | 1 | Lewis base | Very soluble in water |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
BaS2O3 | Barium thiosulfate | 1 | Lewis conjugate | Slightly soluble in water |
CaI2 | Calcium iodide | 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 |
---|---|---|---|---|
BaI2 (cr) | -602.1[1] | – | – | – |
BaI2 (g) | -326[1] | -377[1] | 343[1] | 61.5[1] |
BaI2 (ai) | -648.02[1] | -663.92[1] | 232.2[1] | – |
BaI2 (cr) 1 hydrate | -919.2[1] | – | – | – |
BaI2 (cr) 2 hydrate | -1216.7[1] | – | – | – |
BaI2 (cr) 2.5 hydrate | -1363.6[1] | – | – | – |
BaI2 (cr) 7 hydrate | -2676.5[1] | – | – | – |
CaS2O3 | – | – | – | – |
* (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 |
---|---|---|---|---|
BaS2O3 (cr) | – | – | – | 170.3[1] |
CaI2 (cr) | -533.5[1] | -528.9[1] | 142[1] | – |
CaI2 (g) | -272[1] | – | – | – |
CaI2 (ai) | -653.21[1] | -656.72[1] | 169.5[1] | – |
CaI2 (cr) 8 hydrate | -2929.6[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°, -602.1 kJ · mol−1
- ^ ΔfH°, -326. kJ · mol−1
- ^ ΔfG°, -377. kJ · mol−1
- ^ S°, 343. J · K−1 · mol−1
- ^ Cp°, 61.5 J · K−1 · mol−1
- ^ ΔfH°, -648.02 kJ · mol−1
- ^ ΔfG°, -663.92 kJ · mol−1
- ^ S°, 232.2 J · K−1 · mol−1
- ^ ΔfH°, -919.2 kJ · mol−1
- ^ ΔfH°, -1216.7 kJ · mol−1
- ^ ΔfH°, -1363.6 kJ · mol−1
- ^ ΔfH°, -2676.5 kJ · mol−1
- ^ Cp°, 170.3 J · K−1 · mol−1
- ^ ΔfH°, -533.5 kJ · mol−1
- ^ ΔfG°, -528.9 kJ · mol−1
- ^ S°, 142. J · K−1 · mol−1
- ^ ΔfH°, -272. kJ · mol−1
- ^ ΔfH°, -653.21 kJ · mol−1
- ^ ΔfG°, -656.72 kJ · mol−1
- ^ S°, 169.5 J · K−1 · mol−1
- ^ ΔfH°, -2929.6 kJ · mol−1