Why is methyl orange and phenolphthalein such a good indicator to use in a titration? Surely there has to be bad sides. Especially if your doing a titration with sodium hydroxide and hydrochloric acid...
Also universal indicator is not overly that good as its obvious an estimate not an exact scale as it jumps through the pH scale if you aint careful.
- Thread Starter
- 06-02-2017 22:37
- 07-02-2017 19:04
It depends on the end point. When the graph goes vertical you need an indicator that will change colour round the end point. No indicator works for a weak acid and weak base as theres no sharp change in pH therefore you have to use a pH meter.