Education Technology

Investigating of pH and Conductivity during a titration of a diprotic acid

Published on 04/28/2005

Activity Overview

In this investigation sulfuric acid will be added to a solution of Ba(OH)2 using a pH probe and a conductivity probe.

From this process the pH of first and second equivalence points will be determined along with mapping the conductivity during the titration process.

Before the Activity

Prelab:

  • Prepare 50 ml of 0.02 M H2SO4
  • Prepare 300 ml of 0.02 M Ba(OH)2
  • During the Activity

    In this investigation sulfuric acid will be added to a solution of Ba(OH)2 using a pH probe and a conductivity probe.

    From this process the pH of first and second equivalence points will be determined along with mapping the conductivity during the titration process.

    After the Activity

    Review student results:

  • As a class, discuss questions that appeared to be more challenging
  • Re-teach concepts as necessary