Which one of the following indicators is best suited for titrating 0.10 M HNO2 (pKa = 3.35) with

Question

Nicole Krahulik · Accepted Answer

First, we need to find the pH at the equivalence point of the titration. Since the concentration

Which one of the following indicators is best suited for titrating 0.10 M HNO2 (pKa = 3.35) with 0.10 M NaOH? A. Phenol red, pKa = 7.9 B. Bromocresol purple, pKa = 6.3 C. Bromophenol blue, pKa = 3.9 D. Methyl red, pKa = 5.0 E. Alizarin yellow, pKa = 11.2