Assume an indicator works best when the equivalence point of a titration comes in the middle of the indicator range. For which of the following titrations would methyl red be the best indicator? The pH range of methyl red is 4.8 to 6.0.
Select one:
a. 0.100 M NH3 (Kb = 1.8 × 10–5) + 0.100 M HCl
b. 0.100 M Sr(OH)2 + 0.100 M HI
c. 0.100 M HF (Ka = 7.2 × 10–4) + 0.100 M NaOH
d. 0.100 M HNO3 + 0.100 M KOH
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Assume an indicator works best when the equivalence point of a titration comes in the middle...
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