Which one of the following indicators would be best to use when titrating 0.1M morphine (Kb = 1.6 Ă— 10-6) with 0.3M HCl? Methyl red (pKa = 4.9) Thymolphthalein (pKa = 9.7) Chlorphenol red (pKa = 6.1) Phenol red (pKa = 7.1) Thymol blue (pKa = 1.9)
Added by Erica J.
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In this case, morphine is a weak base (Kb = 1.6 × 10^-6) and HCl is a strong acid. Show more…
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