Ca(NO2)2 + LiHCO3 💧→ CaCO3↓ + LiNO2 + HNO2
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The reaction of calcium nitrite and lithium hydrogencarbonate yields calcium carbonate, lithium nitrite, and nitrous acid (Other reactions are here). This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of calcium nitrite and lithium hydrogencarbonate
General equation
- Precipitation reaction
- Miscible with water/Very soluble in water/Soluble in waterLewis acid + Miscible with water/Very soluble in water/Soluble in waterLewis base💧⟶ Insoluble in water/Very slightly soluble in water/Slightly soluble in waterLewis conjugate + Product(Non-redox product)
Oxidation state of each atom
- Reaction of calcium nitrite and lithium hydrogencarbonate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Ca(NO2)2 | Calcium nitrite | 1 | Lewis acid | Very soluble in water |
| LiHCO3 | Lithium hydrogencarbonate | 1 | Lewis base | Soluble in water |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CaCO3 | Calcium carbonate | 1 | Lewis conjugate | Insoluble in water |
| LiNO2 | Lithium nitrite | 1 | Non-redox product | – |
| HNO2 | Nitrous acid | 1 | Non-redox product | – |
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 |
|---|---|---|---|---|
| Ca(NO2)2 (cr) | -741.4[1] | – | – | – |
| Ca(NO2)2 (cr) 4 hydrate | -1885.7[1] | – | – | – |
| LiHCO3 | – | – | – | – |
* (cr):Crystalline solid
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 |
|---|---|---|---|---|
| CaCO3 (cr) | -1207.13[1] | -1127.75[1] | 88.7[1] | 81.25[1] |
| CaCO3 (ai) | -1219.97[1] | -1081.39[1] | -110.0[1] | – |
| LiNO2 (cr) | -372.4[1] | -302.0[1] | 96[1] | – |
| LiNO2 (ai) | -383.09[1] | -325.5[1] | 136.8[1] | -28.9[1] |
| LiNO2 (cr) 0.5 hydrate | – | -423.3[1] | – | – |
| LiNO2 (cr) 1 hydrate | -676.1[1] | -544.2[1] | 121[1] | – |
| HNO2 (g) cis | -77.99[1] | -42.94[1] | 248.76[1] | 44.77[1] |
| HNO2 (g) trans | -80.12[1] | -45.24[1] | 249.22[1] | 46.07[1] |
| HNO2 (g) | -79.5[1] | -46.0[1] | 254.1[1] | 45.6[1] |
| HNO2 (ao) | -119.2[1] | -50.6[1] | 135.6[1] | – |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (g):Gas, (ao):Un-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°, -741.4 kJ · mol−1
- ^ ΔfH°, -1885.7 kJ · mol−1
- ^ ΔfH°, -1207.13 kJ · mol−1
- ^ ΔfG°, -1127.75 kJ · mol−1
- ^ S°, 88.7 J · K−1 · mol−1
- ^ Cp°, 81.25 J · K−1 · mol−1
- ^ ΔfH°, -1219.97 kJ · mol−1
- ^ ΔfG°, -1081.39 kJ · mol−1
- ^ S°, -110.0 J · K−1 · mol−1
- ^ ΔfH°, -372.4 kJ · mol−1
- ^ ΔfG°, -302.0 kJ · mol−1
- ^ S°, 96. J · K−1 · mol−1
- ^ ΔfH°, -383.09 kJ · mol−1
- ^ ΔfG°, -325.5 kJ · mol−1
- ^ S°, 136.8 J · K−1 · mol−1
- ^ Cp°, -28.9 J · K−1 · mol−1
- ^ ΔfG°, -423.3 kJ · mol−1
- ^ ΔfH°, -676.1 kJ · mol−1
- ^ ΔfG°, -544.2 kJ · mol−1
- ^ S°, 121. J · K−1 · mol−1
- ^ ΔfH°, -77.99 kJ · mol−1
- ^ ΔfG°, -42.94 kJ · mol−1
- ^ S°, 248.76 J · K−1 · mol−1
- ^ Cp°, 44.77 J · K−1 · mol−1
- ^ ΔfH°, -80.12 kJ · mol−1
- ^ ΔfG°, -45.24 kJ · mol−1
- ^ S°, 249.22 J · K−1 · mol−1
- ^ Cp°, 46.07 J · K−1 · mol−1
- ^ ΔfH°, -79.5 kJ · mol−1
- ^ ΔfG°, -46.0 kJ · mol−1
- ^ S°, 254.1 J · K−1 · mol−1
- ^ Cp°, 45.6 J · K−1 · mol−1
- ^ ΔfH°, -119.2 kJ · mol−1
- ^ ΔfG°, -50.6 kJ · mol−1
- ^ S°, 135.6 J · K−1 · mol−1