15 Facts on HCl + Na2SO4: What, How To Balance & FAQs

Hydrogen Chloride (HCl) and Sodium Sulfate(Na₂SO₄) both are inorganic chemicals where HCl is in liquid form and Na₂SO₄ is a white solid. Let us talk about HCl and Na₂SO₄ reactions.

HCl or muriatic acid is a chemical compound present in dilute and concentric forms and is used for analyses of other chemicals. Na₂SO₄ is known as the sulfate of soda and is highly soluble in water .

In the following sections of this article, we will talk about the products of HCl and Na₂SO₄ with their conjugate pairs, reaction type, titration, and net ionic products in detail.

What is the product of HCl and Na₂SO₄

The products formed are Sodium chloride (NaCl) and Sulphuric acid (H₂SO₄) by the reaction of HCl and Na₂SO₄.

HCl + Na₂SO₄= NaCl + H₂SO₄

What type of reaction is HCl + Na₂SO₄

The reaction of HCl with Na₂SO₄ is a double replacement type of reaction. In the reaction, the cations H⁺ and 2Na⁺ and anions Cl^– and SO₄^– combine to form two different products that are NaCl and H₂SO₄, and replace both reactants.

How to balance HCl  + Na₂SO₄

To balance HCl  + Na₂SO₄ reaction following steps must be followed

• Step 1 – As the coefficients are 4 so label them as  A, B, C, and D – A HCl + B Na₂SO₄ = C NaCl + D H₂SO₄

• Step 2 – modify the atoms with suitable numbers as the coefficients are already labeled – A = D = H, B = C = Na, C = A = Cl, D = B = SO₄

• Step 3 – Multiply the atoms coefficient with a suitable number – A = D = 2, B = C = 1, C = A = 2, D = B = 1

• Step 4 – reduce the result of the lowest integer value, the final equation is – 2 HCl +  Na₂SO₄ = 2 NaCl +  H₂SO₄

HCl + Na₂SO₄ titration

The titration between HCl and Na₂SO₄ is not possible because they form NaCl and H₂SO₄ as products and due to this acid formation it is not possible to calculate the endpoint and concentration of the unknown solution.

HCl + Na₂SO₄ net ionic equation

The net ionic equation is – H⁺ + Cl^–+ Na⁺ + SO₄^– = Na⁺ + Cl^– + H⁺ + SO₄^–

• First, write the full equation with their respective states

(l) HCl + (s) Na₂SO₄ = (s) NaCl + (l) H₂SO₄

• Now, split the atoms into ions which is the net ionic reaction

H⁺ + Cl^– + Na⁺ + SO₄^– = Na⁺ + Cl^– + H⁺ + SO₄^–

HCl + Na₂SO₄ conjugate pairs

• The conjugate pair of HCl acid is Cl^– base.

• The conjugate pair of the Na₂SO₄ base is HSO₄^– acid.

HCl and Na₂SO₄ intermolecular forces

• The intermolecular forces that bind HCl are dipole-dipole interactions and the London dispersion force of attraction.

• In Na₂SO₄ the following intermolecular forces are applied, strong electrostatic force and weak electrostatic force

HCl + Na₂SO₄ reaction enthalpy

The reaction enthalpy is zero for the reaction, HCl + Na₂SO₄ = NaCl + H₂SO₄ because the change in energy of the reaction is positive which signifies, that no external energy is given to the reactants.

Is HCl + Na₂SO₄ a buffer solution

The reaction of HCl and Na₂SO₄ cannot act as a buffer solution because the products of the reaction are NaCl which is a strong base and H₂SO₄ which is a strong acid, and strong acid and base together cannot be a buffer solution.

Is HCl + Na₂SO₄ a complete reaction

HCl + Na₂SO₄ is a complete reaction. The products of the reaction are NaCl and H₂SO₄ one is a complete complex of salt (NaCl) and the other is a strong acid (H₂SO₄) both are complete complexes of chemical compounds.

Is HCl + Na₂SO₄ an exothermic or endothermic reaction

The reaction of HCl and Na₂SO₄ is an exothermic reaction. The dissociation of bonds between HCl and Na₂SO₄ heats up by releasing a good amount of energy.

Is HCl + Na₂SO₄ a redox reaction

HCl +Na₂SO₄ is a redox reaction as the product of the reaction HCl + Na₂SO₄ is NaCl which is reduced whereas, H₂SO₄ is oxidized at the end of the reaction.

Is HCl + Na₂SO₄ a precipitation reaction

HCl + Na₂SO₄ is not a precipitation reaction. The products are NaCl and H₂SO₄ which is a liquid itself but NaCl is a salt that is highly soluble in liquid and no precipitation of any chemical compound takes place.

Is HCl + Na₂SO₄ reversible or irreversible reaction

HCl + Na₂SO₄  irreversible reaction. The final products are NaCl and H₂SO₄ both are complete complexes of chemical compounds and cannot be reversed as reactants.

Is HCl + Na₂SO₄ displacement reaction

HCl + Na₂SO₄ is a displacement reaction. In this reaction, the Na²⁺ ion displaces the H^{+ ion to form NaCl, and the} hydrogen ion also displaces SO^4- to form H₂SO₄ as the final product.

Conclusion

The strong acid HCl is mostly used for the analysis of various organic compounds or acid-base analyses too. Na₂SO₄ is used as a drying material in detergent making and in making paper pulp in the kraft process as well.