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Ca(HCO3)2 + Ni(OH)2 → CaCO3 + NiCO3 + 2H2O

The reaction of calcium hydrogencarbonate and nickel(II) hydroxide yields calcium carbonate, nickel(II) carbonate, and water. This reaction is an acid-base reaction and is classified as follows:

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

Reaction data

Chemical equation

General equation

Reaction of acid salt and base
Acid saltBrønsted acid + BaseBrønsted base
SaltConjugate base + (H2O)
Reaction of acid salt and hydroxide base
Acid saltBrønsted acid + Hydroxide baseBrønsted base
SaltConjugate base + H2OConjugate acid

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Ca(HCO3)2Calcium hydrogencarbonate1
Brønsted acid
Acid salt
Ni(OH)2Nickel(II) hydroxide1
Brønsted base
Base
Hydroxide base

Products

Chemical formulaNameCoefficientTypeType in general
equation
CaCO3Calcium carbonate1
Conjugate base
Salt
NiCO3Nickel(II) carbonate1
Conjugate base
Salt
H2OWater2
Conjugate acid
Water

Thermodynamic changes

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
Ca(HCO3)2
Ni(OH)2 (cr)-529.7[1]-447.2[1]88[1]
Ni(OH)2 (ai)-513.8[1]-360.2[1]-150.2[1]
* (cr):Crystalline solid, (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
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]
NiCO3 (cr)-612.5[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]
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (l):Liquid, (g):Gas

References

List of references

  1. 1