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.
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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)+SO32- (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++SO32-+H++Cl-→Na++Cl-+SO2(g) +H2O (l)
- Cross out the spectator ions.
- The left equation is net ionic equation
- 2H+(aq)+SO32- (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.
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