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 ...

Idealized titration curve for an exothermic titration reaction ... Ammonia is typically determined after alkaline distillation by acid-base back-titration, while other nitrogen species are usually ...

Idealized titration curve for an exothermic titration reaction ... Usually, ammonia is determined after alkaline distillation by acid-base back-titration, while other nitrogen species are usually ...