6AsBr3 + 18HNO3 → 3As2O5 + 7HBrO3 + 18NO↑ + 11HBr↑
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- Reaction of and nitric acid
- 6 + 18HNO3Nitric acid3As2O5Diarsenic pentaoxide + 7HBrO3Bromic acid + 18NO↑Nitrogen monoxide + 11HBr↑Hydrogen bromide⟶
The reaction of and nitric acid yields diarsenic pentaoxide, bromic acid, nitrogen monoxide, and hydrogen bromide (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of and nitric acid
- 6 + 18HNO3Nitric acid3As2O5Diarsenic pentaoxide + 7HBrO3Bromic acid + 18NO↑Nitrogen monoxide + 11HBr↑Hydrogen bromide⟶
General equation
- Reaction of reducing species and oxidizing species
- Reducing speciesReducing agent + Oxidizing speciesOxidizing agent ⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of and nitric acid
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| 6 | Reducing | Reducing | ||
| HNO3 | Nitric acid | 18 | Oxidizing | Oxidizing |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| As2O5 | Diarsenic pentaoxide | 3 | Oxidized | – |
| HBrO3 | Bromic acid | 7 | Oxidized | – |
| NO | Nitrogen monoxide | 18 | Reduced | – |
| HBr | Hydrogen bromide | 11 | – | – |
Thermodynamic changes
Changes in standard condition (1)
- Reaction of and nitric acid
| 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 | 2817.9 | – | – | – |
| 469.65 | – | – | – | |
per 1 mol of | 156.55 | – | – | – |
per 1 mol of | 939.30 | – | – | – |
per 1 mol of | 402.56 | – | – | – |
per 1 mol of | 156.55 | – | – | – |
per 1 mol of | 256.17 | – | – | – |
Changes in standard condition (2)
- Reaction of and nitric acid
| 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 | 1881.2 | – | – | – |
| 313.53 | – | – | – | |
per 1 mol of | 104.51 | – | – | – |
per 1 mol of | 627.07 | – | – | – |
per 1 mol of | 268.74 | – | – | – |
per 1 mol of | 104.51 | – | – | – |
per 1 mol of | 171.02 | – | – | – |
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 |
|---|---|---|---|---|
| (cr) | -197.5[1] | – | – | – |
| (g) | -130[1] | -159[1] | 363.87[1] | 79.16[1] |
| HNO3 (l) | -174.10[1] | -80.71[1] | 155.60[1] | 109.87[1] |
| HNO3 (g) | -135.06[1] | -74.72[1] | 266.38[1] | 53.35[1] |
| HNO3 (ai) | -207.36[1] | -111.25[1] | 146.4[1] | -86.6[1] |
| HNO3 (l) 1 hydrate | -473.46[1] | -328.77[1] | 216.90[1] | 182.46[1] |
| HNO3 (l) 3 hydrate | -1056.04[1] | -811.09[1] | 346.98[1] | 325.14[1] |
* (cr):Crystalline solid, (g):Gas, (l):Liquid, (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 |
|---|---|---|---|---|
| As2O5 (cr) | -924.87[1] | -782.3[1] | 105.4[1] | 116.52[1] |
| As2O5 (aq) | -951.4[1] | – | – | – |
| As2O5 (cr) 4 hydrate | -2104.6[1] | – | – | – |
| HBrO3 (ai) | -67.07[1] | 18.60[1] | 161.71[1] | – |
| NO (g) | 90.25[1] | 86.55[1] | 210.761[1] | 29.844[1] |
| HBr (g) | -36.40[1] | -53.45[1] | 198.695[1] | 29.142[1] |
| HBr (ai) | -121.55[1] | -103.96[1] | 82.4[1] | -141.8[1] |
* (cr):Crystalline solid, (aq):Aqueous solution, (ai):Ionized aqueous solution, (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°, -197.5 kJ · mol−1
- ^ ΔfH°, -130. kJ · mol−1
- ^ ΔfG°, -159. kJ · mol−1
- ^ S°, 363.87 J · K−1 · mol−1
- ^ Cp°, 79.16 J · K−1 · mol−1
- ^ ΔfH°, -174.10 kJ · mol−1
- ^ ΔfG°, -80.71 kJ · mol−1
- ^ S°, 155.60 J · K−1 · mol−1
- ^ Cp°, 109.87 J · K−1 · mol−1
- ^ ΔfH°, -135.06 kJ · mol−1
- ^ ΔfG°, -74.72 kJ · mol−1
- ^ S°, 266.38 J · K−1 · mol−1
- ^ Cp°, 53.35 J · K−1 · mol−1
- ^ ΔfH°, -207.36 kJ · mol−1
- ^ ΔfG°, -111.25 kJ · mol−1
- ^ S°, 146.4 J · K−1 · mol−1
- ^ Cp°, -86.6 J · K−1 · mol−1
- ^ ΔfH°, -473.46 kJ · mol−1
- ^ ΔfG°, -328.77 kJ · mol−1
- ^ S°, 216.90 J · K−1 · mol−1
- ^ Cp°, 182.46 J · K−1 · mol−1
- ^ ΔfH°, -1056.04 kJ · mol−1
- ^ ΔfG°, -811.09 kJ · mol−1
- ^ S°, 346.98 J · K−1 · mol−1
- ^ Cp°, 325.14 J · K−1 · mol−1
- ^ ΔfH°, -924.87 kJ · mol−1
- ^ ΔfG°, -782.3 kJ · mol−1
- ^ S°, 105.4 J · K−1 · mol−1
- ^ Cp°, 116.52 J · K−1 · mol−1
- ^ ΔfH°, -951.4 kJ · mol−1
- ^ ΔfH°, -2104.6 kJ · mol−1
- ^ ΔfH°, -67.07 kJ · mol−1
- ^ ΔfG°, 18.60 kJ · mol−1
- ^ S°, 161.71 J · K−1 · mol−1
- ^ ΔfH°, 90.25 kJ · mol−1
- ^ ΔfG°, 86.55 kJ · mol−1
- ^ S°, 210.761 J · K−1 · mol−1
- ^ Cp°, 29.844 J · K−1 · mol−1
- ^ ΔfH°, -36.40 kJ · mol−1
- ^ ΔfG°, -53.45 kJ · mol−1
- ^ S°, 198.695 J · K−1 · mol−1
- ^ Cp°, 29.142 J · K−1 · mol−1
- ^ ΔfH°, -121.55 kJ · mol−1
- ^ ΔfG°, -103.96 kJ · mol−1
- ^ S°, 82.4 J · K−1 · mol−1
- ^ Cp°, -141.8 J · K−1 · mol−1