Ask Question
10 April, 01:54

You can calculate the acid dissociation constant of a weak acid from experimental data

+4
Answers (1)
  1. 10 April, 02:00
    0
    The generic equilibrium constant expression for a weak acid is written as follows.

    If the acid is strong enough to ignore the dissociation of water, the H3O + ion and A - ion concentrations in this solution are about equal.

    [H3O+] [A-]

    Substituting this information into the acid-dissociation equilibrium constant expression gives the following result.

    The concentration of the HA molecules at equilibrium is equal to the initial concentration of the acid minus the amount that dissociates: C.

    If C is small compared with the initial concentration of the acid, we get the following approximate equation.

    Rearranging this equation and taking the square root of both sides gives the following result.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “You can calculate the acid dissociation constant of a weak acid from experimental data ...” in 📗 Chemistry if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers