Sodium oxide and sulphuric acid are inorganic compounds. Na2O exists in solid khuông, while H2SO4 is a syrupy liquid. Let us know more about H2SO4 and Na2O reaction.

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Na2O is a strong basic oxide that is white in color and soluble in water. It has an antifluorite crystalline structure. H2SO4 is a colorless, strong acid and acts as a good dehydrating agent. When H2SO4 is added to lớn Na2O, a strong acid-strong base reaction occurs.

In this article, we will discuss some facts about the acid-base reaction, H2SO4 + Na2O, lượt thích, the product formed, the type of reaction, balancing method, intermolecular force of attraction etc.

What is the product of H2SO4 and Na2O?

Sodium sulphate and water are obtained when Na2O is added to lớn H2SO4.

Na2O + H2SO4 ——–> Na2SO4  + H2O

What type of reaction is H2SO4 + Na2O?

Na2O + H2SO4 is an acid-base reaction, as salt and water are obtained as products.

How to lớn balance H2SO4 + Na2O?

The equation is balanced using the following steps.

Na2O+ H2SO4 = Na2SO4 + H2O

  • Note the number of each and every element involved in the reaction, in both the reactant and product side.
ElementReactant sideProduct side
Number of elements on each side of the reaction
  • The number of each element in the reactant and product side is found to lớn be equal. Therefore, the reaction is self-balanced.
  • Na2O+ H2SO4 = Na2SO4 + H2O

H2SO4 + Na2O titration

 H2SO4 and Na2O follows a strong acid-strong base titration. The strength of Na2O is determined by using the following procedure.


Burette, burette stand, conical flask, measuring jar, trăng tròn ml pipette,  and beaker.


Phenolphthalein is used as the indicator.


  • Standardized H2SOis taken in the burette, and Na2O is taken in the conical flask.
  • Titration is started by slowly adding drops of H2SO4, and phenolphthalein indicator is added in the middle of titration.
  • Titration is continued until the colorless solution just turns pink. This is said to lớn be the equivalence point.
  • Using the formula V1S1=V2S2,  estimate the unknown strength of Na2O.

H2SO4 + Na2O net ionic equation

The net ionic equation for the reaction of H2SO4 + Na2O is

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2H+ (aq) + O2- (aq) =  H2O (l)

To derive the net ionic equation, the following steps are followed:

  • Write the ionic khuông of each of the substances along with their states. The complete ionic equation of H2SO4 + Na2O is –
  • 2H+ (aq) + SO42- (aq) + 2Na+ (aq) + O2- (aq) = 2Na+ (aq) + SO42- (aq) +H2O (l)
  • Cancel the spectator ions (SO42-, Na+), which appear on both sides of the equation, to lớn arrive at the net ionic equation.
  • Thus, the net ionic equation is
  • 2H+ (aq) + O2- (aq) =  H2O (l)

H2SO4 + Na2O conjugate pairs

  • The conjugate base of H2SO4 is HSO4
  • There are no conjugate pairs in Na2O, as being a base, it produces water, which is also a base.

H2SO4 + Na2O intermolecular forces

  • Hydrogen bonding, ionic, dipole-dipole, and Van der Waals dispersion forces are the intermolecular forces in H2SO4.
  • Strong electrostatic force of attraction exists in Na2O between the oppositely charged sodium ions and oxide ions.

H2SO4 + Na2O reaction enthalpy

 H2SO4 + Na2O reaction enthalpy is -2629.3 KJ/mol, and the negative sign indicates that heat is released during this reaction.

Is H2SO4 + Na2O a buffer solution?

H2SO4 + Na2O is not a buffer solution because the reaction mixture contains H2SO4, a strong acid, and Na2O, a strong basic oxide.

Is H2SO4 + Na2O a complete reaction?

H2SO4 + Na2O is a complete reaction, as all the reactants are completely consumed at reaction equilibrium.

Is H2SO4 + Na2O an exothermic reaction?

H2SO4 + Na2O is an exothermic reaction, as the reaction is completed with the energy liberated during the reaction.

Is H2SO4 + Na2O a redox reaction?

H2SO4 + Na2O is not a redox reaction, as the oxidation numbers of all the elements involved remain the same.

Is H2SO4 + Na2O a precipitation reaction?

The reaction H2SO4 + Na2O is not a precipitation reaction, as the salt sodium sulphate formed is water soluble and immediately dissociates into its constituent ions.

Is H2SO4 + Na2O irreversible reaction?

H2SO4 + Na2O is an irreversible reaction because, at equilibrium, the reactants are completely converted into Na2SO4; hence, no backward reaction is seen.

Is H2SO4 + Na2O a displacement reaction?

The reaction between H2SO4 + Na2O is an example of a double displacement reaction, as the sulphate and oxide ions are exchanged for sodium and hydrogen ions, respectively.

Double displacement reaction


Na2O is a metal oxide used in glass and ceramic industries, while H2SO4 is a strong acid used widely in fertilizer and chemical industries.

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