15 Facts on H2SO3 + CsOH: What, How To Balance & FAQs

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The H2SO3 + CsOH is a reaction between a weak acid and a strong base. Let us discuss brief details on H2SO3 + CsOH reaction below.

H2SO3 is a chemical formula of sulfurous acid and consists of 2 H, 1 S, and 3 O atoms. CsOH is cesium hydroxide and consists of 1 Cs, 1 O, and 1 H atoms. H2SO3 is a colorless oxoacid of S and hydrogensulfite’s conjugate acid and has a pungent smell. CsOH is a hygroscopic highly reactive alkaline hydroxide.

Let us discuss the balanced equation of H2SO3 + CsOH, 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 H2SO3 + CsOH chemical reaction.

What is the product of H2SO3 and CsOH?

The product of H2SO3 + CsOH is cesium sulfite (Cs2SO3) and water (H2O).

H2SO3 + 2 CsOH = Cs2SO3 + 2 H2O

What type of reaction is H2SO3 + CsOH?

The H2SO3 + CsOH is a metathesis or double displacement reaction.

How to balance H2SO3 + CsOH?

The steps to balance H2SO3 + CsOH reaction are given below:

  • The unbalanced H2SO3 + CsOH reaction is
  • H2SO3 + CsOH = Cs2SO3 + H2O
  • We can see that LHS is not equal to RHS
  • First, multiply the CsOH on LHS we get
  • H2SO3 + 2 CsOH = Cs2SO3 + H2O
  • Second, multiply the H2O on RHS we get
  • H2SO3 + 2 CsOH = Cs2SO3 + 2 H2O
  • Thus, in the above equation, all the elements present in LHS are equal to RHS. Hence the equation is balanced.

H2SO3 + CsOH titration

The H2SO3 + CsOH is a weak acid and strong base titration. The step-by-step procedure for this titration is given below:

Materials and chemicals:

  • Burette
  • Pipette
  • 5 Conical flask 100 ml
  • 2 Beakers 100 ml
  • Stand
  • Clamp
  • 0.3 molar CsOH solution
  • 0.3 molar H2SO3 solution
  • Phenolphthalein indicator
  • pH meter

Principle:

  • The weak acid and strong base titration occur through the direct shifting of the H+ ion or proton of weak acid to OH- (hydroxide ion) of a strong base.
  • In this kind of weak acid strong base, the acid H2SO3 and CsOH reacts with each other in a 1:1 ratio. In this titration, a burette is used to add one solution to another solution in a conical flask.
  • The solution in the burette is known as titrant which is a strong base.
  • The solution in a conical flask in which the titrant is added is known as an analyte which is a weak acid.

Procedure:

  • First, rinse all the conical flasks and pipettes with H2SO3 solution and burette with CsOH to remove impurities.
  • Then take the initial solution of H2SO3 in one conical flask as a blank and note its concentration and volume.
  • In another 4 conical flasks take 15, 25, 35, and 45 ml of H2SO3 solution and add CsOH solution in the burette.
  • Remove the air gap from the burette and make up the burette volume again with CsOH solution.
  • Take 2nd conical flask and add 2 – 3 drops of phenolphthalein indicator in it and titrate with 0.3 M CsOH solution in the burette.
  • Stir the solution well and note the color change of the H2SO3 solution.  Record the pH of the solution in the pH meter and note it in the notebook.
  • Repeat the same procedure with the conical flasks 3rd, 4th, and 5th and note their pH and volume.
  • As the CsOH solution is added to the H2SO3 solution, the pH of H2SO3 gets changes.
  • Plot the graph against the pH of the H2SO3 solution and the volume of the CsOH solution.

H2SO3 + CsOH net ionic equation

The net ionic equation for H2SO3 + CsOH chemical reaction is as follows:

  • H2SO3 (aq) + 2 CsOH (aq)  = Cs2SO3 (aq)  + 2 H2O (l)
  • 2 H+ + SO3– + 2 Cs+ + 2 OH–    →  2 Cs+ + SO3– + 2 H2O
  • Cancel out the similar ions from both the LHS and RHS, and we get,
  • 2 H+ + 2 OH–    →  2 H2O
  • The 2 Cs+ and SO3– ions get canceled on both sides and get the above net ionic equation.

H2SO3 + CsOH conjugate pairs

The H2SO3 + CsOH conjugate pairs are given below:

  • H2SO3 donates its proton and acts as a conjugate base by forming HSO3– ion.
  • CsOH accepts an electron and acts as a conjugate acid by forming H2O.

H2SO3 and CsOH intermolecular forces

The intermolecular force between H2SO3 and CsOH is given below:

  • H2SO3 has the intermolecular force of hydrogen bonding as it can donate its proton and form water.
  • CsOH has the intermolecular force of dipole-dipole interaction.

H2SO3 + CsOH reaction enthalpy

The reaction enthalpy for H2SO3 + CsOH chemical reaction is -1228.99 kJ/mol.

  • The enthalpy of the formation of H2SO3 is -635.55 kJ/mol.
  • The enthalpy of the formation of CsOH is -416.44 kJ/mol.
  • The enthalpy of the formation of Cs2SO3 is 463.7 kJ/mol.
  • The enthalpy of the formation of H2O is -285.8 kJ/mol.
  • The Reaction enthalpy (∆H) of H2SO3 + CsOH = Enthalpy of product – enthalpy of reactant, we get,
  • (∆H) of H2SO3 + CsOH is = -1051.99 kJ/mol – (177) kJ/mol
  • (∆H) of H2SO3 + CsOH is = -1228.99 kJ/mol.

Is H2SO3 + CsOH a buffer solution?

H2SO3 + CsOH is not a buffer solution. H2SO3 is a weak acid and CsOH is a strong base and is not able to form a buffer solution. Buffer solutions are only formed within weak acid and weak base or salt or conjugate base.

Is H2SO3 + CsOH a complete reaction?

The H2SO3 + CsOH is not a complete reaction. It cannot form an equilibrium. There are two reactants and two products in this reaction and also it has a strong base which is not completely mixed or soluble. The equilibrium favors weak acids or bases.

Is H2SO3 + CsOH an exothermic or endothermic reaction?

H2SO3 + CsOH is an exothermic reaction. When CsOH gets added to H2SO3 the reaction temperature gets increases and produces heat. Also, the enthalpy change value for H2SO3 + CsOH reaction is negative shows an exothermic reaction.

Is H2SO3 + CsOH a redox reaction?

H2SO3 + CsOH is not a redox reaction.

  • The oxidation number of H, S, and O in H2SO3 is +1, +4, and -2.
  • The oxidation number of Cs, O, and H in CsOH is +1, -2, and +1.
  • The oxidation number of in Cs, S, and O in Cs2SO3 is +1, +4, and -2.
  • The oxidation number of H and O in H2O is +1 and -2.
  • This shows that there is no change in oxidation numbers of the reactant and product of the H2SO3 + CsOH reaction and is not a redox reaction.

Is H2SO3 + CsOH a precipitation reaction?

H2SO3 + CsOH is a precipitation reaction. When CsOH has added to H2SO3 it undergoes a displacement reaction and forms a white precipitate of solid Cs2SO3 salt.

Is H2SO3 + CsOH reversible or irreversible reaction?

H2SO3 + CsOH is an irreversible reaction. The reactants H2SO3 and CsOH can form the product Cs2SO3 and H2O, but the products Cs2SO3 and H2O on treated with each other cannot form the H2SO3 and CsOH when reacted.

Is H2SO3 + CsOH displacement reaction?

H2SO3 + CsOH is a displacement reaction. The molecules of reactants H2SO3 and CsOH get displaced to form a product that undergoes a displacement reaction.

Conclusion:

H2SO3 + CsOH reaction has the products Cs2SO3 and H2O. It is a double displacement reaction and forms precipitates of Cs2SO3. It is not a redox reaction as the oxidation number of the reactant does not change after forming the products. It has dipole-dipole interaction and an exothermic reaction.