For the titration of 50.0 mL of 0.150 M ethylamine, C 2 H 5 NH 2 ,

Question:

For the titration of 50.0 mL of 0.150 M ethylamine, C₂H₅NH₂, with 0.100 M HCl, find the pH at each of the following points, and then use that information to sketch the titration curve and decide on an appropriate indicator.
(a) At the beginning, before HCl is added
(b) At the halfway point in the titration
(c) When 75% of the required acid has been added
(d) At the equivalence point
(e) When 10.0 mL more HCl has been added than is required
(f) Sketch the titration curve.
(g) Suggest an appropriate indicator for this titration.