Problem 1.1:
List the major species at points A, B, C, and D on the following
titration curve of the titration of ammonia with HCl.
Figure U.1: Titration of ammonia with hydrochloric acid
Problem 1.2:
Why is it acceptable to use an indicator whose pKa is
not
exactly the pH at the equivalence point?
Problem 1.3:
It takes 26.23 mL of a 1.008 M NaOH solution to neutralize a solution of 5
g of an unknown
monoprotic acid in 150.2 mL of solution. What is the molecular weight of
the unknown?
