CoSO4 + BaS 💧→ CoS↓ + BaSO4↓
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The reaction of cobalt(II) sulfate and barium sulfide yields cobalt(II) sulfide and barium sulfate. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of cobalt(II) sulfate and barium sulfide
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 cobalt(II) sulfate and barium sulfide
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CoSO4 | Cobalt(II) sulfate | 1 | Lewis acid | Very soluble in water |
| BaS | Barium sulfide | 1 | Lewis base | Soluble in water |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CoS | Cobalt(II) sulfide | 1 | Lewis conjugate | Insoluble in water |
| BaSO4 | Barium sulfate | 1 | Lewis conjugate | Insoluble in water |
Thermodynamic changes
Changes in standard condition (1)
- Reaction of cobalt(II) sulfate and barium sulfide
| 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 | −208 | – | – | – |
per 1 mol of | −208 | – | – | – |
per 1 mol of | −208 | – | – | – |
per 1 mol of | −208 | – | – | – |
per 1 mol of | −208 | – | – | – |
Changes in standard condition (2)
- Reaction of cobalt(II) sulfate and barium sulfide
| 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 | −201 | – | – | – |
per 1 mol of | −201 | – | – | – |
per 1 mol of | −201 | – | – | – |
per 1 mol of | −201 | – | – | – |
per 1 mol of | −201 | – | – | – |
Changes in aqueous solution
- Reaction of cobalt(II) sulfate and barium sulfide
| 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 | 1154.1 | – | – | – |
per 1 mol of | 1154.1 | – | – | – |
per 1 mol of | 1154.1 | – | – | – |
per 1 mol of | 1154.1 | – | – | – |
per 1 mol of | 1154.1 | – | – | – |
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 |
|---|---|---|---|---|
| CoSO4 (cr) | -888.3[1] | -782.3[1] | 118.0[1] | – |
| CoSO4 (ai) | -967.3[1] | -799.1[1] | -92[1] | – |
| CoSO4 (cr) 6 hydrate | -2683.6[1] | -2235.36[1] | 367.61[1] | 353.38[1] |
| CoSO4 (cr) 7 hydrate | -2979.93[1] | -2473.42[1] | 406.06[1] | 390.49[1] |
| BaS (cr) | -460[1] | -456[1] | 78.2[1] | 49.37[1] |
| BaS (g) | 50[1] | – | – | – |
| BaS (aq) | -493.3[1] | – | – | – |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (g):Gas, (aq):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 |
|---|---|---|---|---|
| CoS (cr) | -82.8[1] | – | – | – |
| BaSO4 (cr) | -1473.2[1] | -1362.2[1] | 132.2[1] | 101.75[1] |
| BaSO4 (cr) precipitated | -1466.5[1] | – | – | – |
| BaSO4 (ai) | -144.691[1] | -1305.30[1] | 29.7[1] | – |
* (cr):Crystalline solid, (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°, -888.3 kJ · mol−1
- ^ ΔfG°, -782.3 kJ · mol−1
- ^ S°, 118.0 J · K−1 · mol−1
- ^ ΔfH°, -967.3 kJ · mol−1
- ^ ΔfG°, -799.1 kJ · mol−1
- ^ S°, -92. J · K−1 · mol−1
- ^ ΔfH°, -2683.6 kJ · mol−1
- ^ ΔfG°, -2235.36 kJ · mol−1
- ^ S°, 367.61 J · K−1 · mol−1
- ^ Cp°, 353.38 J · K−1 · mol−1
- ^ ΔfH°, -2979.93 kJ · mol−1
- ^ ΔfG°, -2473.42 kJ · mol−1
- ^ S°, 406.06 J · K−1 · mol−1
- ^ Cp°, 390.49 J · K−1 · mol−1
- ^ ΔfH°, -460. kJ · mol−1
- ^ ΔfG°, -456. kJ · mol−1
- ^ S°, 78.2 J · K−1 · mol−1
- ^ Cp°, 49.37 J · K−1 · mol−1
- ^ ΔfH°, 50. kJ · mol−1
- ^ ΔfH°, -493.3 kJ · mol−1
- ^ ΔfH°, -82.8 kJ · mol−1
- ^ ΔfH°, -1473.2 kJ · mol−1
- ^ ΔfG°, -1362.2 kJ · mol−1
- ^ S°, 132.2 J · K−1 · mol−1
- ^ Cp°, 101.75 J · K−1 · mol−1
- ^ ΔfH°, -1466.5 kJ · mol−1
- ^ ΔfH°, -144.691 kJ · mol−1
- ^ ΔfG°, -1305.30 kJ · mol−1
- ^ S°, 29.7 J · K−1 · mol−1