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

by

Copper monosulfide (CuS) is a compound formed with copper and sulfate. Let us discuss the reaction between CuS and H2SO3 in the article.

CuS and H2SO3 react to form salt and sulfides. Sulfurous acid (H2SO3) is an intermediate formed during acid rain and is found mostly in its aqueous state. CuS is a compound formed when H2S is passed through a copper solution. It is best known for its catalytic properties.

We will be discussing some important facts about H2SO3 + CuS, like redox reaction, reaction enthalpy, products and balanced chemical equation through this article.

What is the product of H2SO3 and CuS

Copper (II) sulfite and Hydrogen sulfide (H2S) are the products of H2SO3 and CuS. The chemical equation for H2SO3 + CuS reaction is,

H2SO3 + CuS = CuSO3 + H2O

What type of reaction is H2SO3 + CuS

H2SO3 + CuS reaction is a neutralization reaction. H2SO3 is a weak acid and CuS is a weak alkaline which when combined, produces CuSO3 salt and H2S gas. 

How to balance H2SO3 + CuS

The balanced chemical equation for H2SO3 + CuS reaction is,

H2SO3 + CuS = CuSO3 + H2S

  • The unbalanced equation for H2SO3 + CuS reaction is, 
  • H2SO3 + CuS = CuSO3 + H2S
  • To check if the number of atoms present on both sides of the chemical equation is equal or not.
  • In this case, the atoms are equal on both sides and therefore, this reaction is already balanced.
  • Thus, the balanced chemical equation is,
  • H2SO3 + CuS = CuSO3 + H2S

H2SO3 + CuS titration

The titration between H2SO3 and CuS cannot be processed because both the reactants are weak electrolytes and do not ionize completely in their aqueous state. Therefore, no suitable indicator is available for determining the endpoint of this titration.

H2SO3 + CuS net ionic equation

The net ionic equation for H2SO3 and CuS reaction is,

H2SO3 (aq.) + CuS (aq.) = CuSO3 (s) + H2S (g)

  • Write the general balanced equation of the reaction.
  • H2SO3 + CuS = CuSO3 + H2S
  • Indicate the chemical state of compounds involved in the reaction to obtain the general ionic equation.
  • H2SO3 (aq.) + CuS (aq.) = CuSO3 (s) + H2S (g)
  • Split strong electrolytes into their respective ions. Here no compound is a strong electrolyte; therefore, the net ionic equation is,
  • H2SO3 (aq.) + CuS (aq.) = CuSO3 (s) + H2S (g)

H2SO3 + CuS conjugate pairs

H2SO3 + CuS reaction has the following conjugate pairs,

  • Conjugate pair of H2O contains H2O and its conjugate base OH–.
  • The conjugate pair of H2SO3 is its conjugate base HSO3–.

H2SO3 and CuS intermolecular forces

H2SO3 + CuS reaction has the following intermolecular forces,

  • The intermolecular forces in CuSO3 molecules are ionic bonds because CuSO3 is an ionic compound.

Is H2SO3 + CuS a buffer solution

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

Is H2SO3 + CuS a complete reaction

H2SO3 + CuS reaction is a complete reaction and no further steps are left to proceed in the reaction.

Is H2SO3 + CuS a redox reaction

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

Is H2SO3 + CuS a precipitation reaction

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

Is H2SO3 + CuS reversible or irreversible reaction

H2SO3 + CuS reaction is an irreversible reaction because the CuSO3 precipitates do not dissolve under normal conditions to obtain the reactants back.

Is H2SO3 + CuS displacement reaction

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

H2SO3 + CuS = CuSO4 + H2S

Conclusion

This article concludes that CuS is a moderate conductor of electricity and is mostly known for its catalytic properties. H2SO3 is generally found in its gaseous state and its aqueous form is less common and hard to prepare.