Question

explain why HCLO4 is a stronger acid than HCLO

Answer 1

explain why HCLO4 is a stronger acid than HCLO. ... With increase in oxidation number of a particular halogen atom, the acidic character of corresponding oxoacid increases. According to Lowry-Bronsted concept, a strong acid has weak conjugate base and a weak acid has a strongconjugate base.

Answer 2

HClO4 is a stronger acid than HClO. This is because ClO−4ClO4- is a weaker conjugate base than ClO−. In ClO−4ClO4-, the negative charge is spread over four oxygen atoms owing to resonance. Hence, it is more stable than ClO−.

• HCLO4 is a stronger acid than HCLO. ... With increase in oxidation number of a particular halogen atom, the acidic character of corresponding oxoacid increases.
• According to Lowry-Bronsted concept, a strong acid has weak conjugate base and a weak acid has a strongconjugate base.

Is HClO4 or HOCl a stronger acid?

• Most acidic: HClO4 > HClO3 > HClO2 > HClO.
• For a series of oxyacids with the same number of oxygens but with different central atoms such as HOBr, HOCl, HOI, as the electronegativity of the central atom increases, the O-H bond strength weakens and the acidity increases.
• Most acidic: HOCl > HOBr > HOI :Least acidic.

Why is HClO4 a strong acid?

• HClO4 is a strong acid. Because it readily dissociates in an aqueous solution, which means no dissociated parts of it remain in the solution, all parts completely break off and are ionized in an aqueous solution.

Why is HClO4 more stable?

• As the oxidation state of the central halogen atom increases the halogen-oxygen bond becomes more and more covalent.
• As a result the thermal stability of the oxoacid increases.

• Thus HClO4 is most stable to heat whereas HClO is least stable to heat.

Hence, HClO4 is a stronger acid than HClO. This is because ClO−4ClO4- is a weaker conjugate base than ClO−.

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