The indicator constant of phenolphthalein is approximately

Last updated: 7/3/2023

The indicator constant of phenolphthalein is approximately 10 10 A solution is prepared by adding 100 01c c of 0 01 N sodium hydroxide to 100 00 c c of 0 01N hydrochloric acid If a few drops of phenolphthalein are now added what fraction of the indicator is converted to its coloured form 1 2 3 2 4 3 17 12 2 9 4 11