bmays - 9-6-2013 at 21:43
Say you have quinidine (random choice) acetate, if you add a stronger acid like hbr will it become quinidine hbr? Or will it stay as quinidine acetate
in the hbr solution?
12AX7 - 10-6-2013 at 16:32
The cation (random choice) doesn't matter; you're protonating the anion (acetate or whatever) with a stronger acid (say, HBr, and yes the
capitalization matters, please observe it).
This does not work very well if both acids are weak (a bit of each remains floating around), or if both acids are strong (both remain ionized and very
little free acid is made, at least until the solution is extremely strong, >>1M).
If everything goes into solution, you haven't made a salt, you've made a soup of solvated ions. Acidifying an acetate will yield lots of molecular
acetic acid, but it will remain in solution; you've changed the pH, but haven't affected a separation or isolation. It is not meaningful to say
you've formed another salt (as a combined compound), because only the components of it are floating around, none actually in solid form.
Tim
Random - 11-6-2013 at 08:12
You can also produce the base of a compound with another strong base like NaOH and then react it with whatever the acid you want.