Question

In: Chemistry

For each of the following, indicate if the species is a strong or weak acid. If...

For each of the following, indicate if the species is a strong or weak acid. If it is a weak acid, write the hydrolysis reaction and the K_a expression.

HF

HI

HNO₂

H₂SO₃

HClO₃

HClO₄

H₂SO₄

HClO

Expert Solution

HF is a weak acid because it does not completely dissociate in water because the ions it forms upon dissociation are too strongly bound to each other for it to act as a strong acid.

Hydrolysis reaction of HF is

HF + H20 H₃O⁺ + F^-

Ka = [H3O+][F-] / [HF]

HI is a strong acid because it dissociates completely in water.

HNO2 is a weak acid and hydrolysis reaction is

HNO₂ + H₂O H₃O⁺ + NO₂^-

Ka = [H3O⁺][NO2^-] / [HNO2]

H2SO3 is a weak acid and Hydrolysis reaction is

H2SO3 + H2O H3O⁺ + HSO₃^-

Ka = [H3O⁺][HSO3^-] / [H2SO3]

HClO3 and HClO4 are strong acids due to the multiple oxygens bonded to the central atom.

H2SO4 is a strong acid because it completely dissociates into ions with water.

HClO is a weak acid and hydrolysis reaction is

HClO + H₂O H3O⁺ + ClO^-

Ka = [H3O⁺][ClO^-] / [HClO]

queen_honey_blossom answered 2 years ago

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