MgCl2 + Ca(HCO3)2 💧→ MgCO3↓ + CaCl2 + H2CO3
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The reaction of magnesium chloride and calcium hydrogencarbonate yields magnesium carbonate, calcium chloride, and carbonic acid. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of magnesium chloride and calcium 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 magnesium chloride and calcium hydrogencarbonate
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
MgCl2 | Magnesium chloride | 1 | Lewis acid | Very soluble in water |
Ca(HCO3)2 | Calcium hydrogencarbonate | 1 | Lewis base | Soluble in water |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
MgCO3 | Magnesium carbonate | 1 | Lewis conjugate | Very slightly soluble in water |
CaCl2 | Calcium chloride | 1 | Non-redox product | – |
H2CO3 | Carbonic 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 |
---|---|---|---|---|
MgCl2 (cr) | -641.32[1] | -591.79[1] | 89.62[1] | 71.38[1] |
MgCl2 (g) | -400.4[1] | – | – | – |
MgCl2 (ai) | -801.15[1] | -717.1[1] | -25.1[1] | – |
MgCl2 (cr) 1 hydrate | -966.63[1] | -861.74[1] | 137.2[1] | 115.27[1] |
MgCl2 (cr) 2 hydrate | -1279.72[1] | -1118.00[1] | 179.9[1] | 159.20[1] |
MgCl2 (cr) 4 hydrate | -1898.99[1] | -1623.29[1] | 264.0[1] | 241.42[1] |
MgCl2 (cr) 6 hydrate | -2499.02[1] | -2114.64[1] | 366.1[1] | 315.06[1] |
Ca(HCO3)2 | – | – | – | – |
* (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 |
---|---|---|---|---|
MgCO3 (cr) | -1095.8[1] | -1012.1[1] | 65.7[1] | 75.52[1] |
MgCO3 (cr) 3 hydrate | – | -1726.1[1] | – | – |
MgCO3 (cr) 5 hydrate | – | -2199.2[1] | – | – |
CaCl2 (cr) | -795.8[1] | -748.1[1] | 104.6[1] | 72.59[1] |
CaCl2 (g) | -471.5[1] | -479.24[1] | 290.27[1] | 59.33[1] |
CaCl2 (ai) | -877.13[1] | -816.01[1] | 59.8[1] | – |
CaCl2 (cr) 1 hydrate | -1109.2[1] | – | – | – |
CaCl2 (cr) 2 hydrate | -1402.9[1] | – | – | – |
CaCl2 (cr) 4 hydrate | -2009.6[1] | – | – | – |
CaCl2 (cr) 6 hydrate | -2607.9[1] | – | – | – |
H2CO3 (ao) | -699.65[1] | -623.08[1] | 187.4[1] | – |
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (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°, -641.32 kJ · mol−1
- ^ ΔfG°, -591.79 kJ · mol−1
- ^ S°, 89.62 J · K−1 · mol−1
- ^ Cp°, 71.38 J · K−1 · mol−1
- ^ ΔfH°, -400.4 kJ · mol−1
- ^ ΔfH°, -801.15 kJ · mol−1
- ^ ΔfG°, -717.1 kJ · mol−1
- ^ S°, -25.1 J · K−1 · mol−1
- ^ ΔfH°, -966.63 kJ · mol−1
- ^ ΔfG°, -861.74 kJ · mol−1
- ^ S°, 137.2 J · K−1 · mol−1
- ^ Cp°, 115.27 J · K−1 · mol−1
- ^ ΔfH°, -1279.72 kJ · mol−1
- ^ ΔfG°, -1118.00 kJ · mol−1
- ^ S°, 179.9 J · K−1 · mol−1
- ^ Cp°, 159.20 J · K−1 · mol−1
- ^ ΔfH°, -1898.99 kJ · mol−1
- ^ ΔfG°, -1623.29 kJ · mol−1
- ^ S°, 264.0 J · K−1 · mol−1
- ^ Cp°, 241.42 J · K−1 · mol−1
- ^ ΔfH°, -2499.02 kJ · mol−1
- ^ ΔfG°, -2114.64 kJ · mol−1
- ^ S°, 366.1 J · K−1 · mol−1
- ^ Cp°, 315.06 J · K−1 · mol−1
- ^ ΔfH°, -1095.8 kJ · mol−1
- ^ ΔfG°, -1012.1 kJ · mol−1
- ^ S°, 65.7 J · K−1 · mol−1
- ^ Cp°, 75.52 J · K−1 · mol−1
- ^ ΔfG°, -1726.1 kJ · mol−1
- ^ ΔfG°, -2199.2 kJ · mol−1
- ^ ΔfH°, -795.8 kJ · mol−1
- ^ ΔfG°, -748.1 kJ · mol−1
- ^ S°, 104.6 J · K−1 · mol−1
- ^ Cp°, 72.59 J · K−1 · mol−1
- ^ ΔfH°, -471.5 kJ · mol−1
- ^ ΔfG°, -479.24 kJ · mol−1
- ^ S°, 290.27 J · K−1 · mol−1
- ^ Cp°, 59.33 J · K−1 · mol−1
- ^ ΔfH°, -877.13 kJ · mol−1
- ^ ΔfG°, -816.01 kJ · mol−1
- ^ S°, 59.8 J · K−1 · mol−1
- ^ ΔfH°, -1109.2 kJ · mol−1
- ^ ΔfH°, -1402.9 kJ · mol−1
- ^ ΔfH°, -2009.6 kJ · mol−1
- ^ ΔfH°, -2607.9 kJ · mol−1
- ^ ΔfH°, -699.65 kJ · mol−1
- ^ ΔfG°, -623.08 kJ · mol−1
- ^ S°, 187.4 J · K−1 · mol−1