15 Facts on H2SO4 + O3 What, How To Balance & FAQs

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The H2SO4 + O3 is a reaction between a strong acid and a gas. Let us discuss brief details on H2SO4 + O3 reaction below.

H2SO4 is a chemical formula of sulfuric acid which is a strong acid. O3 is a chemical formula of ozone gas that contains 3 O atoms. H2SO4 contains 2 H, 1 S, and 4 O atoms. O3 gas occurs naturally in the atmosphere as sunlight and heat causes chemical reactions of volatile organic compounds and oxides of nitrogen.

Let us discuss the balanced equation of H2SO4 + O3, its type, titration, intermolecular force, reaction enthalpy, is it a conjugate pair or not, net ionic equation, and many more facts and some FAQs on H2SO4 + O3 chemical reaction.

What is the product of H2SO4 and O3?

The product of H2SO4 + O3 is sulfur tetroxide (SO4) and water (H2O).

3 H2SO4 + O3 = 3 SO4 + 3 H2O

What type of reaction is H2SO4 + O3?

The H2SO4 + O3 is a metathesis or double displacement and redox or oxidation and reduction reaction.

How to balance H2SO4 + O3?

The steps to balance H2SO4 + O3 reaction are given below:

  • The unbalanced H2SO4 + O3 reaction is
  • H2SO4 + O3 = SO4 + H2O
  • We can see that LHS is not equal to RHS
  • First, multiply the H2SO4 on LHS by 3 we get
  •  2 H2SO4 + O3 = SO4 + H2O
  • Second, multiply the SO4 and H2O by 3 on RHS we get
  • 3 H2SO4 + O3 = 3 SO4 + 3 H2O
  • Thus, in the above equation, all the elements present in LHS are equal to RHS. Hence the equation is balanced.

H2SO4 + O3 titration

The steps for the titration of the H2SO4 + O3 chemical reaction are given below:

Materials and Chemicals:

  • 5 M and 18 M H2SO4
  • Ozone gas
  • Spectrophotometer
  • Burette
  • Pipette
  • Beakers
  • Conical flask
  • Cryostat with quartz glass optical windows
  • Dewar bottles

Procedure:

  • The sulfuric acid solutions were prepared by diluting them with highly purified concentrated chemicals.
  • The concentration of H2SO4 solutions was determined by titrating it with alkaline solutions.
  • The process of ozonation was done in a dedicated cell having a cryostat with quartz glass optical windows.
  • The reactor design was suitable to conduct experiments within a wide range of low temperatures.
  • The optical path length ranging from 0.5 cm to 3.0 cm was used in the experiment.
  • The Dewar bottle and optical cell temperature were controlled.
  • Ozone gas was produced by using oxygen with the help of an ozonizer with capillary discharge.
  • The concentration of ozone gas in the mixture of oxygen and ozone was evaluated as 145 mg/L and its composition gets monitored using an analyzer having ozone optical absorption that ranges from 200 to 300 nm.
  • The oxygen and ozone gas mixture bubbling rate was 5 to 6 mL/s.
  • As the test solution reaches a stable state in the optical cell at a given temperature, the oxygen-ozone mixture was bubbled for 15 to 30 minutes till the ozone concentration gets increased in the solution.
  •  To determine quickly at what point the limiting solubility reached, The concentration of O3 in the H2SO4 solution is determined at various intervals depending on the absorption spectrum in the spectrophotometer.
  • The calculation was done at λmax value of 258 nm and epsilon value of 2900 L/mol/cm.

H2SO4 + O3 net ionic equation?

The net ionic equation for H2SO4 + O3 chemical reaction is as follows:

6 H+ → 3 H2O

  • 3 H2SO4 (aq) + O3 (g) = 3 SO4 (s) + 3 H2O (l)
  • 6 H+ +  3 SO42-    → 3 SO42- + 3 H2O
  • Cancel out the similar ions from both the LHS and RHS, and we get,
  • 6 H+ → 3 H2O
  • The 3 SO42- ions get canceled on both sides.

H2SO4 + O3 conjugate pairs

The H2SO4 + O3 reaction is a conjugate pair as follows:

  • H2SO4 can acts as a conjugate base by donating its proton and forming HSO4– ion.
  • O3 cannot show conjugate acid and base pairs.

H2SO4 and O3 intermolecular forces

The intermolecular force between H2SO4 and O3 is given below:

  • H2SO4 has intermolecular forces hydrogen bonding, dispersion forces, and dipole-dipole intermolecular.
  • O3 is a polar molecule and has a polar covalent intermolecular force.

H2SO4 + O3 reaction enthalpy

The reaction enthalpy for H2SO4 + O3 chemical reaction is -205.61 kJ/mol.

  • The enthalpy of the formation of H2SO4 is -814 kJ/mol.
  • The enthalpy of the formation of O3 is 142.7 kJ/mol.
  • The enthalpy of the formation of SO4 is -907.5 kJ/mol.
  • The enthalpy of the formation of H2O is -68 kJ/mol.
  • The Reaction enthalpy (∆H) of H2SO4 + O3 = Enthalpy of product – enthalpy of reactant, we get,
  • (∆H) of H2SO4 + O3 is = -671.3 kJ/mol – (-975.5) kJ/mol
  • (∆H) of H2SO4 + O3 is = 304.2 kJ/mol.

Is H2SO4 + O3 a buffer solution?

The H2SO4 + O3 mixture is not able to form a buffer solution. H2SO4 is a strong acid and O3 is a gas, which is not a combination for buffer solution as a buffer solution is only formed within salt of a weak acid and weak base.

Is H2SO4 + O3 a complete reaction?

The H2SO4 + O3 is not a complete reaction. It cannot form an equilibrium. There are two reactants and two products in this reaction. Thus, it cannot form an equilibrium and it is an incomplete reaction.

Is H2SO4 + O3 an exothermic or endothermic reaction?

The H2SO4 + O3 is an exothermic reaction. When O3 is added to H2SO4, it gets bubbled in it and releases oxygen. Thus heat is also produced with the release of oxygen during bubbling and shows an exothermic reaction.

Is H2SO4 + O3 a redox reaction?

H2SO4 + O3 is a redox reaction.

  • The oxidation number of H, S, and O in H2SO4 is +1, +6, and -2.
  • The oxidation number of O in O3 is 0.
  • The oxidation number of H and O in H2O is +1 and -2.
  • The oxidation number of S and O in SO4 is +4 and -1.
  • This shows that the oxidation numbers of reactant 3 H2SO4 (aq) + O3 (g) and product 3 SO4 (s) + 3 H2O (l) are changed and thus it is a redox reaction.

Is H2SO4 + O3 a precipitation reaction?

H2SO4 + O3 is not a precipitation reaction because it cannot form a precipitate of SO4. The O3 is completely soluble in H2SO4 and thus it cannot form a precipitate in the reaction and also produce water.

Is H2SO4 + O3 reversible or irreversible reaction?

H2SO4 + O3 is an irreversible reaction. The reactants H2SO4 and O3 can form the products SO4 and H2O, but the products SO4 and H2O on treated with each other cannot form the H2SO4 and O3 when reacted.

Is H2SO4 + O3 displacement reaction?

H2SO4 + O3 is a double displacement reaction. The molecules of reactants H2SO4 and O3 get displaced to form a product that undergoes a double displacement reaction.

Conclusion:

H2SO4 + O3 reaction has the products SO4 and H2O. It is a redox reaction and a double displacement reaction. The oxidation numbers of reactants and products get changed. It is an exothermic reaction and cannot form precipitates. It is an irreversible and incomplete reaction.