Page 67 - Analytical Chemistry I E-book
P. 67
Titration curve for weak base with strong acid
• Example: titration of NH3 sample or NaHCO3 sample with standard HCl.
NH3 + H+ → NH4+ HCO3– + H+ → CO2 + H2O
• Indicators with transition ranges in the acidic region can be used: methyl
orange, bromocresol green or methyl red. Phenolphthalein cannot be used.
