I have some praticals at school the other day to do with determening of the pKa values of methyl orange, phenolphthalein and aspirin. The teacher tried to explain the following question to use, but his answer made no sense to me. In the end he wasnt sure what the answer was.
Question: What would be a good indicator (methyl orange or phenolphthalein) to use for a titration of aspirin with 0.1M NaOH solution?
Any help would be greatly appreciated
Many thanks