The ideal indictor for the titration of strong acid and weak base should have a pH range between_______.

It is best to use an indicator in the pH range of 4-6 when measuring the strength of an acid and a weak base in titration . It is necessary to do a strong acid-strong base titration with the use of a phenolphthalein indicator. This particular pigment was chosen because it changes colour when the pH ranges between 8.3 and 10. The acid and base will react in a strong acid – strong base titration, resulting in the formation of a neutral solution. When the reaction reaches its equivalence point, the hydronium (H+) and hydroxide (OH-) ions will react to generate water, which will result in a pH of 7. This is true for every titration involving a strong acid and a strong base.