SnI2 + 2CsOH → 2CsI + Sn(OH)2
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The reaction of tin(II) iodide and caesium hydroxide yields caesium iodide and tin(II) hydroxide. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of tin(II) iodide and caesium hydroxide
General equation
- Reaction of salt of weak base and strong base
- Salt of weak baseBrønsted acid + Strong baseBrønsted base ⟶ Salt of strong baseConjugate acid + Weak baseConjugate base + (H2O)
Oxidation state of each atom
- Reaction of tin(II) iodide and caesium hydroxide
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SnI2 | Tin(II) iodide | 1 | Brønsted acid | Salt of weak base |
| CsOH | Caesium hydroxide | 2 | Brønsted base | Strong base |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CsI | Caesium iodide | 2 | Conjugate acid | Salt of strong base |
| Sn(OH)2 | Tin(II) hydroxide | 1 | Conjugate base | Weak base |
Thermodynamic changes
Changes in standard condition
- Reaction of tin(II) iodide and caesium hydroxide
| 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 | −276.3 | – | – | – |
per 1 mol of | −276.3 | – | – | – |
per 1 mol of | −138.2 | – | – | – |
per 1 mol of | −138.2 | – | – | – |
per 1 mol of | −276.3 | – | – | – |
Changes in aqueous solution
- Reaction of tin(II) iodide and caesium hydroxide
| 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 | −68.0 | – | – | – |
per 1 mol of | −68.0 | – | – | – |
per 1 mol of | −34.0 | – | – | – |
per 1 mol of | −34.0 | – | – | – |
per 1 mol of | −68.0 | – | – | – |
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 |
|---|---|---|---|---|
| SnI2 (cr) | -143.5[1] | – | – | – |
| CsOH (cr) | -417.23[1] | – | – | – |
| CsOH (g) | -247[1] | -247[1] | 254.83[1] | 49.71[1] |
| CsOH (ai) | -488.27[1] | -449.25[1] | 122.30[1] | – |
| CsOH (cr) 1 hydrate | -754.04[1] | – | – | – |
* (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 |
|---|---|---|---|---|
| CsI (cr) | -346.60[1] | -340.58[1] | 123.05[1] | 52.80[1] |
| CsI (g) | -151.9[1] | -191.2[1] | 275.29[1] | 37.45[1] |
| CsI (ai) | -313.47[1] | -343.59[1] | 244.3[1] | -152.7[1] |
| Sn(OH)2 (cr) precipitated | -561.1[1] | -491.6[1] | 155[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°, -143.5 kJ · mol−1
- ^ ΔfH°, -417.23 kJ · mol−1
- ^ ΔfH°, -247. kJ · mol−1
- ^ ΔfG°, -247. kJ · mol−1
- ^ S°, 254.83 J · K−1 · mol−1
- ^ Cp°, 49.71 J · K−1 · mol−1
- ^ ΔfH°, -488.27 kJ · mol−1
- ^ ΔfG°, -449.25 kJ · mol−1
- ^ S°, 122.30 J · K−1 · mol−1
- ^ ΔfH°, -754.04 kJ · mol−1
- ^ ΔfH°, -346.60 kJ · mol−1
- ^ ΔfG°, -340.58 kJ · mol−1
- ^ S°, 123.05 J · K−1 · mol−1
- ^ Cp°, 52.80 J · K−1 · mol−1
- ^ ΔfH°, -151.9 kJ · mol−1
- ^ ΔfG°, -191.2 kJ · mol−1
- ^ S°, 275.29 J · K−1 · mol−1
- ^ Cp°, 37.45 J · K−1 · mol−1
- ^ ΔfH°, -313.47 kJ · mol−1
- ^ ΔfG°, -343.59 kJ · mol−1
- ^ S°, 244.3 J · K−1 · mol−1
- ^ Cp°, -152.7 J · K−1 · mol−1
- ^ ΔfH°, -561.1 kJ · mol−1
- ^ ΔfG°, -491.6 kJ · mol−1
- ^ S°, 155. J · K−1 · mol−1