Ag2O + CrO3 → Ag2CrO4
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The reaction of silver(I) oxide and chromium(VI) oxide yields silver(I) chromate. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of silver(I) oxide and chromium(VI) oxide
General equation
- Reaction of basic oxide and acidic oxide
- Basic oxideLewis base + Acidic oxideLewis acid ⟶ Oxoacid saltLewis conjugate
- Reaction of strongly basic oxide and weakly acidic oxide
- Strongly basic oxideLewis base + Weakly acidic oxideLewis acid ⟶ Salt of weak acid and strong baseLewis conjugate
Oxidation state of each atom
- Reaction of silver(I) oxide and chromium(VI) oxide
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Ag2O | Silver(I) oxide | 1 | Lewis base | Basic oxide Strongly basic oxide |
| CrO3 | Chromium(VI) oxide | 1 | Lewis acid | Acidic oxide Weakly acidic oxide |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Ag2CrO4 | Silver(I) chromate | 1 | Lewis conjugate | Oxoacid salt Salt of weak acid and strong base |
Thermodynamic changes
Changes in standard condition
- Reaction of silver(I) oxide and chromium(VI) oxide
| 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 | −111.2 | – | – | – |
per 1 mol of | −111.2 | – | – | – |
per 1 mol of | −111.2 | – | – | – |
per 1 mol of | −111.2 | – | – | – |
Changes in aqueous solution
- Reaction of silver(I) oxide and chromium(VI) oxide
| 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 | −49.4 | – | – | – |
per 1 mol of | −49.4 | – | – | – |
per 1 mol of | −49.4 | – | – | – |
per 1 mol of | −49.4 | – | – | – |
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 |
|---|---|---|---|---|
| Ag2O (cr) | -31.05[1] | -11.20[1] | 121.3[1] | 65.86[1] |
| CrO3 (cr) | -589.5[1] | – | – | – |
| CrO3 (g) | -385.8[1] | – | – | – |
* (cr):Crystalline solid, (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 |
|---|---|---|---|---|
| Ag2CrO4 (cr) | -731.74[1] | -641.76[1] | 217.6[1] | 142.26[1] |
| Ag2CrO4 (ai) | -669.98[1] | -573.52[1] | 195.8[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°, -31.05 kJ · mol−1
- ^ ΔfG°, -11.20 kJ · mol−1
- ^ S°, 121.3 J · K−1 · mol−1
- ^ Cp°, 65.86 J · K−1 · mol−1
- ^ ΔfH°, -589.5 kJ · mol−1
- ^ ΔfH°, -385.8 kJ · mol−1
- ^ ΔfH°, -731.74 kJ · mol−1
- ^ ΔfG°, -641.76 kJ · mol−1
- ^ S°, 217.6 J · K−1 · mol−1
- ^ Cp°, 142.26 J · K−1 · mol−1
- ^ ΔfH°, -669.98 kJ · mol−1
- ^ ΔfG°, -573.52 kJ · mol−1
- ^ S°, 195.8 J · K−1 · mol−1