Question

Beginning with the equilibrium equation for the dissociation of a weak acid $H A$, show that the percent dissociation varies directly as the square root of $K_{\mathrm{a}}$ and inversely as the square root of the initial concentration of HA when the concentration of HA that dissociates is negligible compared with its initial concentration.

Name: Beginning with the equilibrium equation for the dissociation of a weak acid H A, show that the percent dissociation varies directly as the square root of Ka and inversely as the square root of the initial concentration of HA when the concentration of HA that dissociates is negligible compared with its initial concentration.
Uploaded: 2022-08-30T22:34:33-08:00
Duration: 1 min 49 s
Channel: Ronald Prasad
Description: Beginning with the equilibrium equation for the dissociation of a weak acid H A, show that the percent dissociation varies directly as the square root of Ka and inversely as the square root of the initial concentration of HA when the concentration of HA that dissociates is negligible compared with its initial concentration.

          Beginning with the equilibrium equation for the dissociation of a weak acid $H A$, show that the percent dissociation varies directly as the square root of $K_{\mathrm{a}}$ and inversely as the square root of the initial concentration of HA when the concentration of HA that dissociates is negligible compared with its initial concentration.

Added by Eduardo A.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Ronald Prasad

08/30/2022

Step 1

Step 1:** Write the equilibrium equation for the dissociation of the weak acid $HA$: \[HA \rightleftharpoons H_3O^+ + A^-\] ** Show more…

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Beginning with the equilibrium equation for the dissociation of a weak acid $H A$, show that the percent dissociation varies directly as the square root of $K_{\mathrm{a}}$ and inversely as the square root of the initial concentration of HA when the concentration of HA that dissociates is negligible compared with its initial concentration.