As an example, the equilibrium of a weak acid can be represented but the equation below where HA is a weak acid and A- is its conjugate base. HA ↔ H+ + A- Phenolphthalein is typically used in this ...

So toothpastes contain a base which neutralises the acid, protecting teeth. We will use titration procedures ... Speaker one That is the phenolphthalein. All right, give it a little swirl.

Within 2 minutes, precise and reliable acid number values can be obtained. The titration glass sensors for standard acid/base application in aqueous media or non-aqueous solutions are specifically ...