13 Facts on H2SO3 + CuO: What, How To Balance & FAQs

Copper (II) oxide (CuO) is an organic compound commonly obtained during copper mining. Let us see how H₂SO₃ and CuO react with each other in this article.

H₂SO₃ and CuO react to form salt and water. Sulfurous acid (H₂SO₃) is an acidic chemical that generally occurs as an intermediate during acid rain. It is slightly less acidic than H₂SO₄ and not a strong electrolyte. CuO is a mineral with the common name tenorite.

We will discuss some useful facts about H₂SO₃ + CuO reactions, like the type of reaction, balanced chemical equation and reaction enthalpy through this article.

What is the product of H₂SO₃ and CuO

Copper (II) sulfite and water (H₂O) are the products of H₂SO₃ and CuO. the chemical equation for this reaction is,

H₂SO₃ + CuO = CuSO₃ + H₂O

What type of reaction is H₂SO₃ + CuO

H₂SO₃ + CuO reaction is a neutralization reaction. H₂SO₃ is a weak acid and CuO is a weak base when combined, it produces CuSO₃ salt and H₂O. 

How to balance H₂SO₃ + CuO

The balanced chemical equation for H₂SO₃ + CuO reaction is,

H₂SO₃ + CuO = CuSO₃ + H₂O

• The unbalanced equation for H₂SO₃ + CuO reaction is, 

• H₂SO₃ + CuO = CuSO₃ + H₂O

• To check if the number of atoms present on both sides of the equation is equal or not.

• In our case, the atoms are equal on both sides: therefore, the reaction is already balanced.

• Thus, the balanced chemical equation is,

• H₂SO₃ + CuO = CuSO₃ + H₂O

H₂SO₃ + CuO titration

The titration between H₂SO₃ and CuO cannot be processed because both the compounds are weak electrolytes and do not ionize completely. Thus, no suitable indicator is available for determining the endpoint of the titration.

H₂SO₃ + CuO net ionic equation

The net ionic equation for H₂SO₃ + CuO reaction is,

H₂SO₃ (aq.) + CuO (aq.) = CuSO₃ (s) + H₂O (l)

• Write the general balanced equation.

• H₂SO₃ + CuO = CuSO₃ + H₂O

• Indicate the chemical states of compounds involved in the reaction to obtain the total ionic equation.

• H₂SO₃ (aq.) + CuO (aq.) = CuSO₃ (s) + H₂O (l)

• Split the strong electrolytes into their respective ions. Here no molecule is a strong electrolyte; therefore, the net ionic equation is,

• H₂SO₃ (aq.) + CuO (aq.) = CuSO₃ (s) + H₂O (l)

H₂SO₃ + CuO conjugate pairs

H₂SO₃ + CuO reaction has the following conjugate pairs,

• Conjugate pair of H₂O is its conjugate base OH^–.

• The conjugate pair of H₂SO₃ is its conjugate base HSO₃^–.

H₂SO₃ and CuO intermolecular forces

H₂SO₃ + CuO reaction has the following intermolecular forces,

• The intermolecular forces between CuSO₃ molecules are ionic bonds as CuSO₃ is an ionic compound.

• H₂O molecules contain dipole-dipole interaction and hydrogen bonding.

Is H₂SO₃ + CuO a buffer solution

H₂SO₃ + CuO is not a buffer solution because there is no conjugate acid for sulfurous acid.

Is H₂SO₃ + CuO a complete reaction

H₂SO₃ + CuO reaction is a complete reaction and no further steps are left in the reaction.

Is H₂SO₃ + CuO a redox reaction

The H₂SO₃ + CuO reaction is not a redox reaction as the oxidation states of atoms present in the chemical equation are unchanged.

Is H₂SO₃ + CuO a precipitation reaction

H₂SO₃ + CuO reaction is a precipitation reaction and white precipitates of CuSO₃ are obtained.

Is H₂SO₃ + CuO reversible or irreversible reaction

H₂SO₃ + CuO reaction is an irreversible reaction because the CuSO₃ precipitates do not dissolve back to obtain the reactants back.

Is H₂SO₃ + CuO displacement reaction

H₂SO₃ + CuO is a double displacement reaction in which Cu and H₂ displace each other from their respective molecules to form new products.

Conclusion

This article concludes that Copper (II) oxide (CuO) reacts with acids to produce corresponding salts. It is also used to provide colours in ceramics. H₂SO₃ is only intermediate and tries to be stable by the further reaction.