• methylamine (CH3NH2) → pKa value greater than 7 → weak base.
• HCl is a strong acid.
→ This means we have a weak base-strong acid titration.
Use Figure 19.9 to find an indicator for these titrations:
(a) 0.10 M CH3NH2 (see Appendix C) with 0.10 M HCl
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