15 Facts on HCl + NaHSO3: What, How To Balance & FAQs

HCl is a strong acid with a very high pH, and NaHSO₃ is an acid salt. Let us examine this reaction in a bit more detail in this article.

The preparation of HCl is done by dissolving gaseous HCl in water. HCl is colorless with a very strong odor. NaHSO₃ is an acidic salt, and when the ionization of acidic salt takes place, H+ ions are yielded.

With the help of various aspects, such as balancing and intermolecular forces, we will discuss this reaction.

What is the product of HCl and NaHSO₃?

Sodium chloride (NaCl), water(H₂O) and sulfur dioxide(SO₂) are the products formed when HCl (Hydrochloric acid) reacts with NaHSO₃(Sodium hydrogen carbonate).

NaHSO₃+HCl→NaCl+H₂O+SO₂

What type of reaction is HCL + NaHSO₃

The reaction of HCl with NaHSO₃ is a double displacement reaction.

How to balance HCl + NaHSO₃

• The skeleton equation is needed to be written first.

• Write the number of atoms of respective compounds on the reactant and the product side.

• NaHSO₃+HCl→NaCl+H₂O+SO₂

• As the number of all the atoms of each element are equal.

• This states that this equation is already completely balanced.

HCl + NaHSO₃ titration

The titration of HCl with NaHSO₃ is an acid-base type of titration.

Apparatus required 

• Burette
• Pipette
• Conical flask
• Burette stand
• Funnel
• Stirrer
• White glazed tile
• Measuring flask
• HCl
• NaHSO₃
• Methyl orange
• Watch glass

Procedure

• Dissolve the solution of NaHSO₃ in distilled water to prepare its standard solution by adding the required amount of water.
• Fill the burette with the solution.
• Add the indicator which is methyl orange.
• The light colour change to light pink is observed.
• Note down all the readings.

Result

With the help of all the calculations of normality, molarity and molar mass, the result is observed.

HCl + NaHSO₃ net ionic equation

The net ionic equation for the reaction of HCl with NaHSO₃ is 2H⁺(aq)+SO₃^2- (aq)→SO₂(g) +H₂O (l)

The net ionic equation is derived using the following steps:

• The complete balanced equation is needed to be written first.
• NaHSO₃+HCl→NaCl+H₂O+SO₂

• Mention the physical state of the compounds along with them.
• NaHSO₃(aq)+HCl(aq)→NaCl(aq)+H₂O(l)+SO₂(g)

• Break all the aqueous compounds into their corresponding ions. The gases and liquids are not dissociated into their ions.
• Na⁺+H⁺+SO₃^2-+H⁺+Cl^–→Na⁺+Cl^–+SO₂(g) +H₂O (l)

• Cross out the spectator ions.

• The left equation is net ionic equation
• 2H⁺(aq)+SO₃^2- (aq)→SO₂(g) +H₂O (l)

HCl + NaHSO₃ conjugate pairs

HCl and NaHSO₃ have the following conjugate pairs:

• HCl is a strong acid with a conjugate base pair Cl^– because of the donation of a proton.

• Conjugate pair of NaHSO₃ is HSO₃^–.

HCl and NaHSO₃ intermolecular forces

HCl and NaHSO₃ have the following intermolecular forces:

• HCl contains two intermolecular forces between its particles: Dipole-Dipole interaction and London dispersion force.

• NaHSO₃ has hydrogen bonding, covalent bonding and coordinated intermolecular forces between its particles.

HCl + NaHSO₃ reaction enthalpy

The reaction enthalpy of HCl is −92.3 kJ/mol, whereas, for NaHSO₃, the reaction enthalpy is -1387.1 kJ/mol.

Is HCl+ NaHSO₃ a buffer solution

HCL + NaHSO₃ is not a buffer solution because HCl is a strong acid and a buffer solution can not contain a strong acid as it will ionize completely.

Is HCL + NaHSO₃ a complete reaction a complete reaction

HCL + NaHSO₃ is a complete reaction because two reactants combine to form three products, among which one is soluble in water.

Is HCl + NAHSO3 an exothermic or endothermic reaction

The reaction between HCl and NaHSO₃ is exothermic as a lot of heat is evolved during the reaction, and the reaction enthalpy is also positive.

Is HCL + NaHSO₃ a redox reaction

The reaction of HCl with NaHSO₃ is a redox reaction because oxidation state changes from reactant to product side.

Is HCL + NaHSO₃ a precipitation reaction 

The reaction between HCl and NaHSO₃ is not a precipitation reaction because the product formed is NaCl (common salt) which is completely soluble in water.

Is HCL + NaHSO₃ reversible or irreversible reaction

The reaction between HCl and NaHSO₃ is irreversible because the salt produced is completely soluble in water. Hence the reaction can not go back to the reactant phase.

Is HCl +NaHSO₃ displacement reaction

The reaction between HCl and NaHSO₃ is a double displacement reaction because the two reacting molecules exchange their corresponding ions.

Conclusion

This reaction yielded three products, among which NaCl is known as rock salt and has a ph 7. NaCl is commonly used as a food preservative and also helps to enhance the flavour of the food. It is also used to melt ice in low temperature countries, whereas SO₂ is a colourless gas that helps manufacture sulphuric acid.