This reaction comprises a strong acid HI with potassium chlorate (KClO3). Let us examine some more key points of this reaction in detail.
HI belongs to the category of hydrogen halide and has atomicity 2. It’s very common to use in synthesizing iodine, organically and inorganically, whereas KClO3 comprises three elements; potassium, chlorine and oxygen. KClO3 acts as a strong oxidizing agent.
While balancing a complete skeletal equation, a few more points, such as reaction enthalpy etc., will be discussed in this article.
What is the product of HI and KClO3
Potassium chloride(KCl), Iodide(I2), and water(H2O) are the three products that are formed when HI react with KClO3.
KClO3+ 6HI → KCl + 3I2+ 3H2O
What type of reaction is HI + KClO3
The reaction between HI and KClO3 is a double displacement reaction because the ions of both reactants mutually exchange their places to form compounds.
How to balance HI + KClO3
- Write the skeletal equation.
- Write the number of atoms of each element that is present in the equation on both sides ( reactant and product side)
| Elements | Number of atoms on reactant side | Number of atoms on product side |
|---|---|---|
| K | 1 | 1 |
| Cl | 1 | 1 |
| H | 1 | 2 |
| I | 1 | 2 |
| O | 3 | 1 |
- Equalize the number of atoms of hydrogen, oxygen, and Iodine.
- Hence, the balanced chemical equation is
- KClO3+ 6HI → KCl + 3I2+ 3H2O
HI + KClO3 titration
There is no feasible result for the titration of HI and KClO3 because HI is the strong acid, whereas KClO3 is the potassium salt.
HI + KClO3 net ionic equation
The net ionic equation for HI and KClO3 is : ClO3- + H+ +I–→ K+ +Cl– + I2+ H2O
- Write the complete balanced equation.
- KClO3+ 6HI → KCl + 3I2+ 3H2O
- Write the physical state of the compound along with them.
- KClO3(aq)+ 6HI(aq) → KCl (aq)+ 3I2(s)+ 3H2O(l)
- Break the compounds which are aqueous in nature and leave the solids and liquids as they are.
- K+ +ClO3- + H+ +I–→ K+ +Cl– + I2+ H2O
- Cross out the ions which are the same on both sides.
- ClO3- + H+ +I–→ K+ +Cl– + I2+ H2O
- The remaining equation is the net ionic equation.
- ClO3- + H+ +I–→ K+ +Cl– + I2+ H2O
HI + KClO3 conjugate pairs
The respective conjugate pairs of HI and KClO3 are:
- The conjugate base pair for the strong acid HI is I–
- The conjugate pair of KClO3 is ClO3-.
HI and KClO3 intermolecular forces
The intermolecular forces which are present within the molecules of HI and KClO3 are:
- Dispersion forces, dipole-dipole forces, and hydrogen bonding are present between the molecules of HI.
- KClO3 has ionic forces between its particles hence making it a polar compound.
HI + KClO3 reaction enthalpy
The reaction enthalpy of HI and KClO3 is -735.98 kJ.
Is HI + KClO3 a buffer solution
HI and KClO3 is not a buffer solution because HI is a strong acid, and it will ionize completely, hence would not help in changing the pH.
Is HI + KClO3 a complete reaction
The reaction of HI with KClO3 is complete because two products take place in a double displacement reaction to form three stable products.
Is HI + KClO3 an exothermic or endothermic reaction
The reaction between HI and KClO3 is exothermic in nature because, in this reaction, the enthalpy of reactants is greater than the enthalpy of the products.
Is HI + KClO3 a redox reaction
The reaction between HI and KClO3 is a redox reaction, as explained below:
- During Reduction : ClV + 6 e– → Cl-I
- During oxidation : 6 I-I – 6 e– → 6 I0
- In the reaction between HI and KClO3, HI acts as a reducing agent, whereas KClO3 acts as an oxidizing agent.
Is HI + C a precipitation reaction
HI and KClO3 is not precipitation reaction because the products formed are completely soluble. Hence no residue is left in the reaction.
Is HI + KClO3 reversible or irreversible reaction
The reaction between HI and KClO3 is irreversible as all the compounds are completely dissolvable. Hence the products will not go back to the reactant state.
Is HI + KClO3 displacement reaction
The reaction between HI and KClO3 is a double displacement reaction due to their mutual exchange of ions.
Conclusion
The product formed, KCl, is an ionic salt with a strong bond between potassium and chlorine, and diiodine is an iodine element with atomicity 2. This molecule has no charge and has a covalent bond between its molecules.
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