Answer Happy

A 29.2 mL sample
of 0.280 M dimethylamine, (CH3)2NH,
is titrated
with 0.325 M hydroiodic
acid. After adding 9.53 mL
of hydroiodic acid, the pH is .
What is the pH at the equivalence point in the titration of
a 25.8 mL sample of
a 0.440 M aqueous nitrous
acid solution with
a 0.383 M aqueous potassium
hydroxide solution?pH =
A 33.6 mL sample of
a 0.366 M
aqueous hypochlorous acid solution is
titrated with a 0.227 M
aqueous potassium hydroxide solution.
What is the pH after 32.4 mL of base
have been added?pH =
Which of the following aqueous solutions are good buffer
systems?
.
0.26 M ammonia + 0.37 M ammonium bromide
0.11 M acetic
acid + 0.22 M sodium acetate
0.29 M hydrochloric
acid + 0.20 M sodium chloride
0.38 M potassium
perchlorate + 0.29 M potassium
bromide
0.19 M barium
hydroxide + 0.25 M barium bromide