Discover The 13 Incredible Facts On HCl + As2S5 Reaction

Diarsenic pentasulfide is solid inorganic pigment. Let us read how As₂S₅ reacts with hydrochloric acid (HCl) in the article below.

As₂S₅ and HCl react to produce AsCl₅ (arsenic pentachloride) and H₂S (hydrogen sulfide). HCl is an important chemical present in the digestive systems of humans. HCl has a strong acidic nature with a pungent smell. As₂S₅ is mainly found as pigments and reaction intermediates and is applied for laboratory purposes.

This article will discuss key features of the HCl + As₂S₅ reaction, like the type of reaction, balanced chemical equation, conjugate pairs and intermolecular forces through this article.

What is the product of HCl and As₂S₅

AsCl₅ (arsenic pentachloride) and H₂S (hydrogen sulfide) are the products of the As₂S₅ and HCl chemical reaction. The chemical equation for the reaction is:

HCl + As₂S₅ = AsCl₅ + H₂S

What type of reaction is HCl + As₂S₅

The HCl + As₂S₅ reaction is a double displacement reaction.

How to balance HCl + As₂S₅

The balanced chemical equation is,

10 HCl + As₂S₅ = 2 AsCl₅ + 5 H₂S

• The unbalanced form of the chemical equation is,

• HCl + As₂S₅ = AsCl₅ + H₂S

• The elements that are not balanced are identified. In the above equation, As, S, Cl and H atoms are unbalanced.

• The smallest whole number multiple of the atoms of each element is determined, which is given below:

S.no.	Atom	Coefficient
1.	H	10
2.	Cl	10
3.	As	2
4.	S	5

• Coefficients 10, 2 and 5 are added to HCl, AsCl₅ and H₂S to balance the chemical equation.

• The balance chemical equation thus obtained is,

• 10 HCl + As₂S₅ = 2 AsCl₅ + 5 H₂S

HCl + As₂S₅ titration

The titration of As₂S₅ and HCl is not feasible as titration can only occur between an acid and base or an oxidising and reducing agent.

HCl + As₂S₅ net ionic equation

The net ionic equation for HCl + As₂S₅ reaction is,

10 H⁺ (aq.) + 10 Cl^– (aq.) + As₂S₅ (aq.) = 2 AsCl₅ (aq.) + 5 H₂S (g)

• Write the balanced molecular equation for HCl + As₂S₅.

• 10 HCl + As₂S₅ = 2 AsCl₅ + 5 H₂S

• Mark each reactant and product with its chemical state (s, l, g or aq.).

• 10 HCl (aq.) + As₂S₅ (aq.) = 2 AsCl₅ (aq.) + 5 H₂S (g)

• Dissociate the strong electrolytes into their ions.

• 10 H⁺ (aq.) + 10 Cl^– (aq.) + As₂S₅ (aq.) = 2 AsCl₅ (aq.) + 5 H₂S (g)

• Remove all the spectator ions to obtain the net ionic equation. In this case, no spectator ion is present. Thus, the balanced net ionic equation is,

• 10 H⁺ (aq.) + 10 Cl^– (aq.) + As₂S₅ (aq.) = 2 AsCl₅ (aq.) + 5 H₂S (g)

HCl + As₂S₅ conjugate pairs

HCl and As₂S₅ collectively do not have any conjugate pairs. But here, the conjugate pair of HCl contains its conjugate base Cl^–.

HCl and As₂S₅ intermolecular forces

The intermolecular forces of reactants and products involved are as follows:

• HCl contains dipole-dipole interaction and London dispersion forces.

• Dipole-dipole interactions are also present in H₂S.

• AsCl₅ is a non-polar molecule.

Is HCl + As₂S₅ a buffer solution

HCl + As₂S₅ is not a buffer solution because HCl is a very strong acid, but there must be present a weak acid or base with its conjugate base or acid in order to obtain a buffer solution.

Is HCl + As₂S₅ a complete reaction

The H_­Cl + As₂S₅ reaction is a complete reaction; no further steps are possible after the mentioned one.

Is HCl + As₂S₅ an exothermic or endothermic reaction

The HCl + As₂S₅ reaction is an exothermic reaction as it is accompanied by the gas evolution.

Is HCl + As₂S₅ a redox reaction

The HCl + As₂S₅ reaction is not a redox reaction, as the oxidation state of each atom is stable throughout the reaction.

Is HCl + As₂S₅ a precipitation reaction

HCl + As₂S₅ reaction is not a precipitation reaction as no solid products formed during the reaction progression.

Is HCl + As₂S₅ reversible or irreversible reaction

The HCl + As₂S₅ reaction is an irreversible reaction as the reaction path has only one way and the H₂S gas evolved cannot be reverted to the reaction mixture.

Is HCl + As₂S₅ displacement reaction

The HCl + As₂S₅ reaction is a double displacement reaction in which H and As atoms replace each other from their respective compounds to produce new ones.

Conclusion

This article concludes that As₂S₅ reacts with HCl, evolving heat and hydrogen sulfide gas in the atmosphere. The process is irreversible and no spectator ions are present in the reaction progress. Both the atoms (As and H) can displace each other from their respective ions.