1940•The Journal of Chemical PhysicsRequires access

Errors in the Determination of the Dissociation Constant of a Weak Acid by the Extrapolation Method

Mary L. Kilpatrick

Abstract

In the extrapolation method for determining the dissociation constant of a weak acid the value of the limiting equivalent conductance is not known from independent measurements, and both the limiting equivalent conductance Λ0 and the dissociation constant K are obtained from conductimetric measurements on solutions of the acid. While clearly convenient, the reliability of the method has been questioned. In the present paper equations are derived which express the effect on K and on Λ0 of errors in the experimental quantities. For water as solvent, tables are given showing the numerical values of the errors. The possibility of detecting constant errors is discussed.

About this research paper

What this paper is about

Why it matters

OpenAlex reports 6 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Extrapolation, Dissociation constant, Limiting, Conductance, Acid dissociation constant, Dissociation (chemistry), Chemistry, Constant (computer programming)