NaBr + C6H5SO3H → C6H5SO3Na + HBr↑
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The reaction of sodium bromide and benzenesulfonic acid yields sodium benzenesulfonate and hydrogen bromide. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of sodium bromide and benzenesulfonic acid
General equation
- Salt of volatile acidBrønsted base + Nonvolatile acidBrønsted acid ⟶ Salt of non volatile acidConjugate base + Volatile acidConjugate acid
Oxidation state of each atom
- Reaction of sodium bromide and benzenesulfonic acid
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| NaBr | Sodium bromide | 1 | Brønsted base | Salt of volatile acid |
| C6H5SO3H | Benzenesulfonic acid | 1 | Brønsted acid | Nonvolatile acid |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| C6H5SO3Na | Sodium benzenesulfonate | 1 | Conjugate base | Salt of non volatile acid |
| HBr | Hydrogen bromide | 1 | Conjugate acid | Volatile acid |
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 |
|---|---|---|---|---|
| NaBr (cr) | -361.062[1] | -348.983[1] | 86.82[1] | 51.38[1] |
| NaBr (g) | -143.1[1] | -177.06[1] | 241.19[1] | 36.32[1] |
| NaBr (ai) | -361.665[1] | -365.849[1] | 141.4[1] | -95.4[1] |
| NaBr (cr) 2 hydrate | -951.94[1] | -828.29[1] | 179.1[1] | – |
| C6H5SO3H | – | – | – | – |
* (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 |
|---|---|---|---|---|
| C6H5SO3Na | – | – | – | – |
| 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] |
* (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°, -361.062 kJ · mol−1
- ^ ΔfG°, -348.983 kJ · mol−1
- ^ S°, 86.82 J · K−1 · mol−1
- ^ Cp°, 51.38 J · K−1 · mol−1
- ^ ΔfH°, -143.1 kJ · mol−1
- ^ ΔfG°, -177.06 kJ · mol−1
- ^ S°, 241.19 J · K−1 · mol−1
- ^ Cp°, 36.32 J · K−1 · mol−1
- ^ ΔfH°, -361.665 kJ · mol−1
- ^ ΔfG°, -365.849 kJ · mol−1
- ^ S°, 141.4 J · K−1 · mol−1
- ^ Cp°, -95.4 J · K−1 · mol−1
- ^ ΔfH°, -951.94 kJ · mol−1
- ^ ΔfG°, -828.29 kJ · mol−1
- ^ S°, 179.1 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