An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...

This is an outline method for carrying out a titration in which an acid is added to alkali. The same method works for adding an alkali to an acid – just swap around the liquids that go into the ...

With the conductivity meter lead in the stirring barium hydroxide solution, plug in the conductivity meter. It should indicate that the barium hydroxide solution conducts. Begin adding sulfuric acid ...

A well-established technique, acid-base titration is an analytical method used to determine the concentration of an unknown acid or base. In practice, it involves adding a solution of known strength ...

In a titration, sulfuric acid of concentration \(0.1 moll^{-1}\) was added from a burette into a conical flask containing \(20cm^{3}\) of sodium hydroxide solution. The average titre was \(11.2cm^{3}\ ...

In most chemistry curriculum, students attend practical trainings in physical laboratories to reinforce their theoretical knowledge. However, the availability of these facilities can be limited or ...

This study examined a comprehensive approach to quantifying iron in over-the-counter supplements through two laboratory experiments designed for undergraduate students in analytical chemistry and ...

Each chemical reaction involves an enthalpy change that leads to a change in temperature. The amount of substance converted during the reaction determines the increase (i.e. exothermic reaction) or ...