NaHCO3 and H2SO3 are known as Sodium bicarbonate and Sulfurous acid respectively. These inorganic compound reactions will be discussed here. Let us know more about their reaction.
H2SO3 (Sulfurous acid) is a colourless liquid having a strong smell. While NaHCO3 ( Sodium bicarbonate/Nahcolite) also known as baking soda is a crystalline white solid used in baking, and even in little extent in chemical fire extinguishers.
Here we will study more about the reaction between NaHCO3+H2SO3, the type of reaction, buffer solution, the product formed, conjugate pair, and much more.
What is the product of H2SO3 and NaHCO3
Sodium sulfite and Carbonic acid are formed as products when sulfurous acid reacts with sodium bicarbonate (Nahcolite). The reaction is presented below:-
2NAHCO3 + H2SO3 —> Na2SO3 + 2HHCO3
What type of reaction is H2SO3 + NaHCO3
The reaction between H2SO3 and NaHCO3 is a double displacement reaction.
How to balance H2SO3 + NaHCO3
The general reaction is H2SO3 + 2NaHCO3 —> Na2SO3+2HHCO3 which is balanced.
Calculate the number of moles of each element involved in both the reactant and product side of the reaction.
| Element | Reactant side | Product side |
|---|---|---|
| Na | 2 | 2 |
| H | 4 | 4 |
| C | 2 | 2 |
| O | 9 | 9 |
| S | 1 | 1 |
• It can be balanced by labeling each compound with a variable.
• Solve for the variable.
• Substitution and equating both sides.
• And the thus balanced reaction is obtained.
As the number of each element in the reactant side and product is equal the reaction is balanced.
H2SO3 + NaHCO3 net ionic equation
- The net ionic equation between NaHCO3+H2SO3 is –
- 2NaHCO3(aq)+H2SO3(aq)—> Na2SO3(aq) + 2HHCO3(aq)
- These steps are involved to derive the net ionic equation:
- To write the balanced molecular equation along with the physical state.
- Then the ionic form of each of them existing in an aqueous form and is capable of forming dissociation is mentioned.
- The complete ionic equation is as given-
- 2Na+(aq)+ 2HCO3(aq)+2H+(aq)+SO32-(aq)—> 2Na+(aq)+SO32-(aq)+4H+(aq)+2CO32-(aq)
- The balanced ionic reaction has only those species which are involved in the reaction. The ions found on both sides are removed and the net ionic equation is derived.
- 2HCO3–(aq)—>2H+(aq)+2CO32-
Is H2SO3+NaHCO3 conjugate pairs
H2SO3 and NaHCO3 are both conjugate acid-base pair.
- The conjugate base of H2SO3 is HSO3–( bisulfite anion).
- The conjugate base of NaHCO3 is H2CO3(carbonic acid).
H2SO3 and NaHCO3 intermolecular forces
The intermolecular forces in H2SO3 are London dispersion forces, Van der Waals forces, and dipole-dipole interactions. NaHCO3 has an ionic bond between Na+ and HCO3–.
H2SO3 + NaHCO3 reaction enthalpy
The standard reaction enthalpy of the reaction between H2SO3 and NaHCO3 is negative.
Is H2SO3+NaHCO3 a buffer solution
H2SO3+NaHCO3 is a buffer solution. As the reaction includes a weak acid and weak base which marks it as a buffer.
Is H2SO3 + NaHCO3 a complete reaction
H2SO3 + NaHCO3 is not a complete reaction. Due to H2SO3 being a weak acid remains in the reaction.
Is H2SO3 + NaHCO3 an exothermic or endothermic reaction
H2SO3 + NaHCO3 is an exothermic reaction as the energy is the result of combustion in the form of Carbon dioxide and water vapours. As the energy is given out during the reaction it is exothermic in nature.
Is H2SO3+NaHCO3 a redox reaction
The reaction between H2SO3+NaHCO3 is not a redox reaction, as the oxidation state of elements remains unchanged during the reaction.
Is H2SO3 +NaHCO3 a precipitation reaction
H2SO3 +NaHCO3 is a precipitation reaction as the product formed is a white crystalline precipitate of sodium sulphite, which is insoluble in water.
Is H2SO3+NaHCO3 displacement reaction
The reaction between H2SO3 + NaHCO3 is a double displacement reaction, because the anions and cations exchange leading formation of salt.
Conclusion
Nahcolite also known as mineral carbonate of Sodium bicarbonate is used as a buffering agent. It has predominant use in baking. An aqueous solution of SO2 often called Sulfurous acid is used in many industries such as fertilizer, dyes, and also in the metallurgical and petrol refining process.
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