Using Figure 17.11, suggest an indicator to use in each of the following titrations.
(a) NaHCO₃ is titrated to CO₃²⁻ with NaOH.
(b) Hypochlorous acid is titrated with NaOH.
(c) Trimethylamine is titrated with HCl.

Data given in Figure 17.11

Transcribed Image Text:

3 Crystal violet Cresol red Thymol blue 5 Erythrosin B 2,4-Dinitrophenol Bromphenol blue Methyl orange 7 Bromcresol green Methyl red 00 Eriochrome black T Bromcresol purple Alizarin 8 10 Bromthymol blue Phenol red Im-Nitrophenol 11 o-Cresolphthalein Phenolphthalein 12 Thymolphthalein 13 14 Alizarin yellow GG Figure 17.11 Common acid-base indicators. The color changes occur over a range of pH values. Notice that a few indicators have color changes over two different pH ranges.