15 Facts on H2SO3 + Ba(OH)2: What, How to Balance & FAQs

by

H2SO3 + Ba(OH)2 refer the reaction between Sulphurous acid (H2SO3) and Barium hydroxide (Ba(OH)2). Let us be known to the compound below:

Sulphurous acid (H2SO3) has been identified a one of the weakest acid. The acid is found in solution that means in liquid state but the individual molecules are found in gaseous state. Besides, Barium hydroxide (Ba(OH)2) is a strong base which is found as an white amorphous solid.

H2SO3 + Ba(OH)2 is the reaction which will be analysed throughout this articles by quantifying some valuable facts regarding the process of this chemical reaction. Facts such as balanced chemical equation, buffer solution, intermolecular forces and others will be demonstrated in the article.

What is the product of H2SO3 + Ba(OH)2?

H2SO3 + Ba(OH)2  give out Barium sulphite  (BaSO3) and water (H2O). The reaction is as follows:

H2SO3 + Ba(OH)2 = BaSO3 + H2O

What type of reaction is H2SO3 + Ba(OH)2?

H2SO3 + Ba(OH)2 is an acid-base reaction. As H2SO3 us a weak acid and Ba(OH)2 is a strong base, the reaction is considered as an acid-base reaction.

How to balance H2SO3 + Ba(OH)2?

H2SO3 + Ba(OH)2 reaction can be balanced by following some general steps which are demonstrated below:

  • In the first step the identification of number of participative element in both side is needed to be calculated
  • The general equation of the reaction is H2SO3 + Ba(OH)2 = BaSO3 + H2O
  • In reactants 4 H, 1 S, 5 O, 1Ba are present.
  • In products 2 H, 1 S, 4 O, 1 Ba is present.
  • The number of Hydrogen and Oxygen molecules are needed to be balanced
  • Firstly multiplication of H2SO3 with 2 has been done to balance the numbers of Hydrogen.
  • The equation obtained as 2H2SO3 + Ba(OH)2 = BaSO3 + H2O
  • Cancelling the multiplication of H2SO3 with 2, the same has been done with the water molecule
  • The equation obtained is H2SO3 + Ba(OH)2 = BaSO3 + 2H2O
  • All the elements are balanced in each side now.
  • The final balanced equation is H2SO3 + Ba(OH)2 = BaSO3 + 2H2O

H2SO3 + Ba(OH)2 titration

H2SO3 + Ba(OH)2 titration is not justified as there is not string or significant results is obtained after the titration takes place between weak acid Sulphurous acid and string acid Barium hydroxide. Ba(OH)2 is more reliable to give fruitful result in the titration with H2SO4.

H2SO3 + Ba(OH)2 net ionic equation

H2SO3 + Ba(OH)2 net ionic equations is given below:

H2SO3 (aq) + Ba(OH)2 (s) = BaSO3 (s)+ H2O (liq)

H2SO3 + Ba(OH)2 conjugate pairs

H2SO3 + Ba(OH)2 conjugate pairs are as follows:

  • H2SO3 and Ba(OH)2 can be considered as a conjugate acid-base pair
  • The conjugate base of H2SO3 is HSO3–
  • The conjugate acid of H2SO3 is H+
  • The conjugate acid of  Ba(OH)2 is Ba+
  • The conjugate base of  Ba(OH)2 is OH–

H2SO3 + Ba(OH)2 intermolecular forces

H2SO3 + Ba(OH)2 intermolecular forces are given below:

  • H2SO3 is an ionic compound made up with ionic bonds which denotes stronger intermolecular force.
  • Ba(OH)2 is also made off ionic bonds which indicates strong ionic intermolecular forces

H2SO3 + Ba(OH)2 reaction enthalpy

H2SO3 + Ba(OH)2 reaction enthalpy are given below:

  • The Enthalpy of formation of H2SO3 is -655.5 kJ /mole
  • The Enthalpy of  formation of Ba(OH)2  is −643.9 kJ / mole
  • The Enthalpy of  formation of BaSO3 is -1030 kJ / mole
  • The Enthalpy of  formation of H2O is -285.8 kJ / mole

Is H2SO3 + Ba(OH)2 a buffer solution?

H2SO3 + Ba (OH) 2 are great example of an acidic buffer solution.  This reaction between weak acid and strong base reaches an acidic equilibrium when the product barium sulphite starts forming in the solution. That solution in the equilibrium phase is found as acidic buffer of H2SO3 and Ba (OH) 2.

Is H2SO3 + Ba(OH)2 a complete reaction?

H2SO3 + Ba (OH) 2 are a complete reaction which can reach to an exact equilibrium phase after the reactants compete combining with each other. The reaction gives out a specific amount of product as well.

Is H2SO3 + Ba(OH)2 an exothermic or endothermic reaction?

H2SO3 + Ba(OH)2 is an exothermic reaction as the formation enthalpy of the products are negative. It denotes that a specific amount if heat energy is produced at the end of the reaction.

h2so3 + ba(oh)2
Exothermic reaction graph

Is H2SO3 + Ba(OH)2 a redox reaction?

H2SO3 + Ba(OH)2 can be considered a redox reaction. The addition of OH– with H refers to oxidation. On the other hand leaving H+ from Sulphurous acid refers to the reduction reaction. Both equally happen in this reaction so it might be a redox reaction. 

Is H2SO3 + Ba(OH)2 a precipitation reaction?

H2SO3 + Ba(OH)2 is a precipitation reaction. The main product Barium sulphite is found be formed as white precipitation in the product solution which is insoluble in water and in other organic compound.

Is H2SO3 + Ba(OH)2 reversible or irreversible reaction?

H2SO3 + Ba(OH)2 is an irreversible reaction as the products, Water and barium sulphite does not undergo further reaction to for the reactant back.

Is H2SO3 + Ba(OH)2 displacement reaction?

H2SO3 + Ba(OH)2 is a displacement reaction. The H+ ions from H2SO3 leave the compound and takes the place of Ba in Ba(OH)2. Besides, by leaving Ba(OH)2 Ba combines with SO3.

Conclusion

The reaction between Sulphurous acid and Barium hydroxide is found as an amazing example of buffer solution when it reaches equilibrium. However, the reaction refers to an acid-base reaction which has integrated knowledge about weak acid and strong base conjugation.