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  3. 2Ba(HCO3)2 + 2e^− → 2Ba^2+ + CO↑ + 2H2O + 3CO3^2−

2Ba(HCO3)2 + 2e− → 2Ba2+ + CO↑ + 2H2O + 3CO32−

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Reduction of barium hydrogencarbonate
2Ba(HCO3)2Barium hydrogencarbonate + 2e−Electron
⟶
2Ba2+Barium ion + CO↑Carbon monoxide + 2H2OWater + 3CO32−Carbonate ion

Reduction of barium hydrogencarbonate yields barium ion, carbon monoxide, water, and carbonate ion (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:

Table of contents
  1. 1Reaction data
  2. 2Thermodynamic changes
  3. 3References
  4. 4Related reactions
  5. 5Related categories

Reaction data

Chemical equation

Reduction of barium hydrogencarbonate
2Ba(HCO3)2Barium hydrogencarbonate + 2e−Electron
⟶
2Ba2+Barium ion + CO↑Carbon monoxide + 2H2OWater + 3CO32−Carbonate ion

General equation

Reduction of reducible species
ReactantOxidizing agent + e−
⟶
ProductReduction product

Oxidation state of each atom

Reduction of barium hydrogencarbonate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Ba(HCO3)2Barium hydrogencarbonate2
Oxidizing
–
e−Electron2
–
Electron

Products

Chemical formulaNameCoefficientTypeType in general
equation
Ba2+Barium ion2
–
–
COCarbon monoxide1
Reduced
–
H2OWater2
–
–
CO32−Carbonate ion3
–
–

Thermodynamic changes

Changes in standard condition (1)

Reduction of barium hydrogencarbonate
◆
ΔrG152.20 kJ/mol
K0.22 × 10−26
pK26.66
2Ba(HCO3)2Ionized aqueous solution + 2e−
⟶
2Ba2+Un-ionized aqueous solution + CO↑Gas + 2H2OLiquid + 3CO32−Un-ionized aqueous solution
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
54.38152.20−198.0–
27.1976.100−99.00–
per 1 mol of
Electron
27.1976.100−99.00–
per 1 mol of
Barium ion
27.1976.100−99.00–
per 1 mol of
54.38152.20−198.0–
per 1 mol of
27.1976.100−99.00–
per 1 mol of
Carbonate ion
18.1350.733−66.00–

Changes in standard condition (2)

Reduction of barium hydrogencarbonate
◆
ΔrG169.47 kJ/mol
K0.20 × 10−29
pK29.69
2Ba(HCO3)2Ionized aqueous solution + 2e−
⟶
2Ba2+Un-ionized aqueous solution + CO↑Un-ionized aqueous solution + 2H2OLiquid + 3CO32−Un-ionized aqueous solution
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
43.94169.47−291.1–
21.9784.735−145.6–
per 1 mol of
Electron
21.9784.735−145.6–
per 1 mol of
Barium ion
21.9784.735−145.6–
per 1 mol of
43.94169.47−291.1–
per 1 mol of
21.9784.735−145.6–
per 1 mol of
Carbonate ion
14.6556.490−97.03–

Thermodynamic data of reactants

Chemical formulaStandard 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
Ba(HCO3)2 (ai)-1921.63[1]-1734.30[1]192.0[1]–
e−––––
* (ai):Ionized aqueous solution

Thermodynamic data of products

Chemical formulaStandard 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
Ba2+ (g)1660.38[1]–––
Ba2+ (ao)-537.64[1]-560.77[1]9.6[1]–
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]–
H2O (cr)––––
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]
CO32− (ao)-677.14[1]-527.81[1]-56.9[1]–
* (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid, (l):Liquid

References

List of references

  1. 1
    Janiel J. Reed (1989)
    The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI Units
    National Institute of Standards and Technology (NIST)