Author Question: Consider the titration of 100.0 mL of the weak diprotic acid H2A (0.10 M) with 0.20 M NaOH. What are ... (Read 47 times)

xclash · **on:** Mar 21, 2021

Question 1

Consider the titration of 100.0 mL of 0.250 M aniline (K_b = 3.83 × 10^–10) with 0.500 M HCl. Calculate the pH of the solution at the stoichiometric point.

◦ 5.10
◦ 9.42
◦ 2.68
◦ 11.32
◦ None of these are correct.

Question 2

Consider the titration of 100.0 mL of the weak diprotic acid H₂A (0.10 M) with 0.20 M NaOH. What are the major species at each of the following points in the titration? (Water is always assumed to be a major species.)

Reference: Ref 15-3

◦ HA^–
◦ H₂A, HA^–
◦ HA^–, A^2–
◦ H₂A
◦ None of these are correct.

meltdown117 · **Reply #1 on:** Mar 21, 2021

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