Hydro fluoride and copper carbonate are inorganic compounds with chemical formula HF and CuCO3 . Let us see the reaction of HF + CuCO3 in detail.
Copper carbonate (CuCO3), also known as cupric carbonate, is a gray color inorganic compound used as a pigment to obtain the desired color by artists. HF is colorless, corrosive and highly soluble in water. Copper fluoride is an inorganic compound having the chemical formula CuF2.
This article discusses some important reactions between HF + CuCO3, redox reaction, reversible reaction, the product formed etc.
What is the product of HF and CuCO3?
Cupric fluoride (CuF2), carbon dioxide (CO2) and water (H2O) are formed when Hydro fluoride (HF) reacts with copper carbonate CuCO3.
HF + CuCO3 —> CuF2 + CO2 + H2O.
What type of reaction is HF + CuCO3?
HF + CuCO3 is a neutralization reaction in which acid and base react to form salt and water.
How to balance HF + CuCO3?
- The reaction between HF and CuCO3 is balanced, as shown below:
- The general equation is HF + CuCO3 —> CuF2 + CO2 + H2O.
- The number of moles of elements in the reactants and products
| Elements | Reactants | Products |
|---|---|---|
| H | 1 | 2 |
| F | 1 | 2 |
| Cu | 1 | 1 |
| C | 1 | 1 |
| O | 3 | 3 |
- The number of H moles is multiplied by 2 on the reactant side to balance it.
- Also, the number of moles of F has to be multiplied by 2 on the reactant side.
- Now, the number of moles of each element is balanced on both sides.
- The balanced equation is 2HF + CuCO3 —> CuF2 + CO2 + H2O.
HF + CuCO3 titration
The titration between HF + CuCO3 is not carried out because CuCO3 is insoluble in water. CuCO3 has low hydration enthalpy and possesses high lattice energy.
HF + CuCO3 net ionic equation
- The net ionic equation of HF + CuCO3 is
- 2H+(aq) +CuCO3(aq) —> Cu2+(aq) + CO2(aq) + H2O(l).
- The state of elements and ionic equation of the HF + CuCO3 reaction is as follows:
- 2H+(aq) + 2F–(aq) + CuCO3(aq) —> Cu2+(aq) + 2F–(aq) + CO2(aq) + H2O(l).
- CuCO3 is not soluble in water, and hence its ionic separation is not possible, and CO2 is a gas, gets evolved, and an ionic form is not possible.
- The same ions from either side get canceled. Therefore,
- 2H+(aq) +CuCO3(aq) —> Cu2+(aq) + CO2(aq) + H2O(l).
Is HF + CuCO3 a conjugate pair
HF + CuCO3 is a conjugate pair because they differ in Proton number to form a conjugate pair.
- The conjugate base of HF is F–
- The conjugate acid of CuCO3 is HCO3–.
HI + CuCO3 intermolecular forces
The intermolecular forces between the reaction of HI + CuCO3 are:
- HF exhibits hydrogen bonds and dipole-dipole intermolecular forces.
- The intermolecular force in the CuCO3 molecule is electrostatic attraction.
- Ionic interaction is observed in CuF2.
HF + CuCO3 reaction enthalpy
The reaction enthalpy of HF + CuCO3 is -427.7 KJ/mol.
The enthalpy of the formation of molecules is shown below:
| Molecules | Reaction enthalpy(KJ/mol) |
|---|---|
| HF | -272.7 |
| CuCO3 | -1206.9 |
| CuF2 | -1228 |
| CO2 | -393.5 |
| H2O | -285.8 |
The reaction enthalpy is calculated as follows.
Reaction enthalpy = (standard enthalpy of products) – (standard enthalpy of reactants)
(-1907.3) – (-1479.6) = – 427.7 KJ\mol.
Is HF + CuCO3 a buffer solution
HF + CuCO3 gives a buffer solution as HF is a weak acid and CuCO3 is a weak base. The solution’s pH is not changed, which means the solution is a buffer solution.
Is HF + CuCO3 a complete reaction
The reaction between HF and CuCO3 is complete because no more reaction occurs after the products are formed.
Is HF + CuCO3 an exothermic or endothermic reaction
The reaction between HF and CuCO3 is exothermic as the reaction enthalpy value is negative.
Is HF + CuCO3 a redox reaction
The reaction between HF and CuCO3 is not a redox reaction because neither oxidation or reduction takes place.
Is HF + CuCO3 a reversible reaction
The reaction between HF and CuCO3is irreversible as CO2 formed evolves, and the product cannot be changed to reactants by any method.
Is HF + CuCO3 a precipitation reaction
The reaction between HF and CuCO3 is a precipitation reaction because CuF2 formed a blue precipitate when hydrated.
Is HF + CuCO3 a displacement reaction?
The reaction between HF and CuCO3 is a double displacement reaction in which the F atom gets displaced from HF to Cu, and CO3 gets displaced to H from CuCO3.
Conclusion
The reaction between HF and CuCO3 gives CuF2, CO2, and H2O. CuF2 is widely used to make ceramics and is in flux for brazing and soldering. CuCO3 is rarely produced as it reacts with moisture from the air and is used to prepare fluorinated aromatic hydrocarbon compounds.
Hello…I am Manjula Sivapuri. I have completed my graduation in Chemistry. Currently working as a Chemistry Subject Matter expert in LambdaGeeks. My keen interest in chemistry has brought me to this platform to share my knowledge on the subject. I hope my work will make you understand the topics well.
Connect me via LinkedIn