AP Chemistrymediummcq1 pt
Which indicator would suit a titration with equivalence point at pH 8.3?
A.Phenolphthalein (color change ~8.2–10)
B.Methyl orange (~3.1–4.4)
C.Methyl red (~4.4–6.2)
D.Bromothymol blue (~6.0–7.6)
Explanation
Core Concept
An indicator must change color over a range bracketing the equivalence point. Phenolphthalein's 8.2–10 window covers pH 8.3.
Correct Answer
APhenolphthalein (color change ~8.2–10)
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