Acid-Base Titration, and

the pH Scale

The Solubility Product

Demos to Prepare:

pH paper & acids & bases

pH meter

Ans: [Ba⁺²] = 2.85 X 10^-4M , [CO₃^-2] = 2.85 X 10^-4M

Ans: Because K_trial (10^-13) > K_sp (10^-29), a ppt will form.

Demo: Titration

A colorful demonstration of different indicators in various concentrations of acid-base solutions. Video:

Titration of sulfuric acid plus barium hydroxide neutralizes the solution and forms the precipitate barium hydroxide. The indicator and lack of electrical conductivity show the End Point. Video:

Here Endeth Unit 25

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