Under what circumstances will it not be a problem to add the indicator after an acid-base titration has begun?
A.
Any time if the acid and base are both strong.
B.
Any time if either the acid or base is weak.
C.
As long as it is added before the endpoint.
D.
It is never acceptable to add the indicator late.
Exam No：AP Chemistry Practice Test Year：2024 Question No：20
Answer:
C
Knowledge points:
8.5 Acid-Base Titrations
Solution:
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