3H2S + 4NaHCO3 ๐ฅโ Na2SO4 + 2NaHS + 4CO + 4H2O
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- Reaction of hydrogen sulfide and sodium hydrogencarbonate
The reaction of hydrogen sulfide and sodium hydrogencarbonate yields sodium sulfate, sodium hydrogensulfide, carbon monoxide, and water (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 hydrogen sulfide and sodium hydrogencarbonate
General equation
- Reaction of reducing species and reducible species
- Reducing speciesReducing agent + Reducible speciesOxidizing agent โถ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of hydrogen sulfide and sodium hydrogencarbonate
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
H2S | Hydrogen sulfide | 3 | Reducing | Reducing |
NaHCO3 | Sodium hydrogencarbonate | 4 | Oxidizing | Reducible |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
Na2SO4 | Sodium sulfate | 1 | Oxidized | โ |
NaHS | Sodium hydrogensulfide | 2 | โ | โ |
CO | Carbon monoxide | 4 | Reduced | โ |
H2O | Water | 4 | โ | โ |
Thermodynamic changes
Changes in standard condition (1)
- Reaction of hydrogen sulfide and sodium hydrogencarbonate
Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
---|---|---|---|---|
per 1 mol of Equation | 418.17 | โ | โ | โ |
per 1 mol of | 139.39 | โ | โ | โ |
per 1 mol of | 104.54 | โ | โ | โ |
per 1 mol of | 418.17 | โ | โ | โ |
per 1 mol of | 209.09 | โ | โ | โ |
per 1 mol of | 104.54 | โ | โ | โ |
per 1 mol of | 104.54 | โ | โ | โ |
Changes in standard condition (2)
- Reaction of hydrogen sulfide and sodium hydrogencarbonate
Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
---|---|---|---|---|
per 1 mol of Equation | โ | โ | โ | โ |
per 1 mol of | โ | โ | โ | โ |
per 1 mol of | โ | โ | โ | โ |
per 1 mol of | โ | โ | โ | โ |
per 1 mol of | โ | โ | โ | โ |
per 1 mol of | โ | โ | โ | โ |
per 1 mol of | โ | โ | โ | โ |
Changes in aqueous solution (1)
- Reaction of hydrogen sulfide and sodium hydrogencarbonateโ
ฮrG 212.96 kJ/mol K 0.49 ร 10โ37 pK 37.31
Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
---|---|---|---|---|
per 1 mol of Equation | 357.2 | 212.96 | 488 | โ |
per 1 mol of | 119.1 | 70.987 | 163 | โ |
per 1 mol of | 89.30 | 53.240 | 122 | โ |
per 1 mol of | 357.2 | 212.96 | 488 | โ |
per 1 mol of | 178.6 | 106.48 | 244 | โ |
per 1 mol of | 89.30 | 53.240 | 122 | โ |
per 1 mol of | 89.30 | 53.240 | 122 | โ |
Changes in aqueous solution (2)
- Reaction of hydrogen sulfide and sodium hydrogencarbonateโ
ฮrG 282.03 kJ/mol K 0.39 ร 10โ49 pK 49.41
Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
---|---|---|---|---|
per 1 mol of Equation | 315.4 | 282.03 | 116 | โ |
per 1 mol of | 105.1 | 94.010 | 38.7 | โ |
per 1 mol of | 78.85 | 70.507 | 29.0 | โ |
per 1 mol of | 315.4 | 282.03 | 116 | โ |
per 1 mol of | 157.7 | 141.01 | 58.0 | โ |
per 1 mol of | 78.85 | 70.507 | 29.0 | โ |
per 1 mol of | 78.85 | 70.507 | 29.0 | โ |
Changes in aqueous solution (3)
- Reaction of hydrogen sulfide and sodium hydrogencarbonateโ
ฮrG 217.1 kJ/mol K 0.92 ร 10โ38 pK 38.03
Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
---|---|---|---|---|
per 1 mol of Equation | 404.3 | 217.1 | 634 | โ |
per 1 mol of | 134.8 | 72.37 | 211 | โ |
per 1 mol of | 101.1 | 54.27 | 159 | โ |
per 1 mol of | 404.3 | 217.1 | 634 | โ |
per 1 mol of | 202.2 | 108.5 | 317 | โ |
per 1 mol of | 101.1 | 54.27 | 159 | โ |
per 1 mol of | 101.1 | 54.27 | 159 | โ |
Changes in aqueous solution (4)
- Reaction of hydrogen sulfide and sodium hydrogencarbonateโ
ฮrG 286.2 kJ/mol K 0.72 ร 10โ50 pK 50.14
Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
---|---|---|---|---|
per 1 mol of Equation | 362.6 | 286.2 | 262 | โ |
per 1 mol of | 120.9 | 95.40 | 87.3 | โ |
per 1 mol of | 90.65 | 71.55 | 65.5 | โ |
per 1 mol of | 362.6 | 286.2 | 262 | โ |
per 1 mol of | 181.3 | 143.1 | 131 | โ |
per 1 mol of | 90.65 | 71.55 | 65.5 | โ |
per 1 mol of | 90.65 | 71.55 | 65.5 | โ |
Thermodynamic data of reactants
Chemical formula | Standard enthalpy of formation ฮfHยฐ kJ ยท molโ1 | Standard Gibbs energy of formation ฮfGยฐ kJ ยท molโ1 | Standard molar entropy Sยฐ J ยท Kโ1 ยท molโ1 | Standard molar heat capacity at constant pressure Cpยฐ J ยท Kโ1 ยท molโ1 |
---|---|---|---|---|
H2S (g) | -20.63[1] | -33.56[1] | 205.79[1] | 34.23[1] |
H2S (ao) | -39.7[1] | -27.83[1] | 121[1] | โ |
NaHCO3 (cr) | -950.81[1] | -851.0[1] | 101.7[1] | 87.61[1] |
NaHCO3 (ai) | -932.11[1] | -848.66[1] | 150.2[1] | โ |
NaHCO3 (ao) | -943.9[1] | -849.7[1] | 113.8[1] | โ |
* (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid, (ai):Ionized aqueous solution
Thermodynamic data of products
Chemical formula | Standard enthalpy of formation ฮfHยฐ kJ ยท molโ1 | Standard Gibbs energy of formation ฮfGยฐ kJ ยท molโ1 | Standard molar entropy Sยฐ J ยท Kโ1 ยท molโ1 | Standard molar heat capacity at constant pressure Cpยฐ J ยท Kโ1 ยท molโ1 |
---|---|---|---|---|
Na2SO4 (cr) orthorhombic | -1387.08[1] | -1270.16[1] | 149.58[1] | 128.20[1] |
Na2SO4 (cr) metastable | โ | โ | 154.934[1] | 129.29[1] |
Na2SO4 (ai) | -1389.51[1] | -1268.36[1] | 138.1[1] | -201[1] |
Na2SO4 (cr) 10 hydrate | -4327.26[1] | -3646.85[1] | 592.0[1] | โ |
NaHS (cr) | -237.23[1] | โ | โ | โ |
NaHS (ai) | -257.73[1] | -249.81[1] | 121.8[1] | โ |
NaHS (cr) 2 hydrate | -838.47[1] | โ | โ | โ |
CO (g) | -110.525[1] | -137.168[1] | 197.674[1] | 29.142[1] |
CO (ao) | -120.96[1] | -119.90[1] | 104.6[1] | โ |
H2O (cr) | โ | โ | โ | โ |
H2O (l) | -285.830[1] | -237.129[1] | 69.91[1] | 75.291[1] |
H2O (g) | -241.818[1] | -228.572[1] | 188.825[1] | 33.577[1] |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (g):Gas, (ao):Un-ionized aqueous solution, (l):Liquid
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)
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- ^ ฮfGยฐ, -33.56 kJ ยท molโ1
- ^ Sยฐ, 205.79 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 34.23 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -39.7 kJ ยท molโ1
- ^ ฮfGยฐ, -27.83 kJ ยท molโ1
- ^ Sยฐ, 121. J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -950.81 kJ ยท molโ1
- ^ ฮfGยฐ, -851.0 kJ ยท molโ1
- ^ Sยฐ, 101.7 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 87.61 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -932.11 kJ ยท molโ1
- ^ ฮfGยฐ, -848.66 kJ ยท molโ1
- ^ Sยฐ, 150.2 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -943.9 kJ ยท molโ1
- ^ ฮfGยฐ, -849.7 kJ ยท molโ1
- ^ Sยฐ, 113.8 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -1387.08 kJ ยท molโ1
- ^ ฮfGยฐ, -1270.16 kJ ยท molโ1
- ^ Sยฐ, 149.58 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 128.20 J ยท Kโ1 ยท molโ1
- ^ Sยฐ, 154.934 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 129.29 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -1389.51 kJ ยท molโ1
- ^ ฮfGยฐ, -1268.36 kJ ยท molโ1
- ^ Sยฐ, 138.1 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, -201. J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -4327.26 kJ ยท molโ1
- ^ ฮfGยฐ, -3646.85 kJ ยท molโ1
- ^ Sยฐ, 592.0 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -237.23 kJ ยท molโ1
- ^ ฮfHยฐ, -257.73 kJ ยท molโ1
- ^ ฮfGยฐ, -249.81 kJ ยท molโ1
- ^ Sยฐ, 121.8 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -838.47 kJ ยท molโ1
- ^ ฮfHยฐ, -110.525 kJ ยท molโ1
- ^ ฮfGยฐ, -137.168 kJ ยท molโ1
- ^ Sยฐ, 197.674 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 29.142 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -120.96 kJ ยท molโ1
- ^ ฮfGยฐ, -119.90 kJ ยท molโ1
- ^ Sยฐ, 104.6 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -285.830 kJ ยท molโ1
- ^ ฮfGยฐ, -237.129 kJ ยท molโ1
- ^ Sยฐ, 69.91 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 75.291 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -241.818 kJ ยท molโ1
- ^ ฮfGยฐ, -228.572 kJ ยท molโ1
- ^ Sยฐ, 188.825 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 33.577 J ยท Kโ1 ยท molโ1