Chapter 15, Problem 14Q

Consider the following four titrations.

i. 100.0 mL of 0.10 M HCl titrated by 0.10 M NaOH

ii. 100.0 mL of 0.10 M NaOH titrated by 0.10 M HCl

iii. 100.0 mL of 0.10 M CH₃NH₂ titrated by 0.10 M HCl

iv. 100.0 mL of 0.10 M HF titrated by 0.10 M NaOH Rank the titrations in order of:

a. increasing volume of titrant added to reach the equivalence point.

b. increasing pH initially before any titrant has been added.

c. increasing pH at the halfway point in equivalence.

d. increasing pH at the equivalence point.

How would the rankings change if C₅H₅N replaced CH₃NH₂ and if HOC₆H₅ replaced HF?