The following are sample non multiple choice questions taken from recent exams: These particular questions cover:
the approximate pH of a solution that contains 0.35 M of hydrofluoric acid
and 0.62 M of sodium fluoride.
solution initially contains 0.50 M of sodium fluoride and 0.62 M of hydrofluoric
acid. The approximate pH of 1.0 L of this solution AFTER the addition of
0.20 moles of sodium hydroxide is ______.
(Assume that the volume doesn't change, Ka for HF = 7.2x10-4).
the ratio of [NH4+]/[NH3] to give a buffer
with pH = 10.0.