Would a weak acid start out high or low?
When it hits equilibrium what happens? does it level out?
Im very confused....i add HCl(stong) with NH3(weak) and I know it hit equilibrium when 20mL of HCl has been added...
any help is great!
2007-04-06 05:39:01 · 2 answers · asked by Tracey Lee ♥ 2 in Science & Mathematics ➔ Chemistry
HCl is a strong acid and NH3 is a weak base so your titration curve will tend to move to the right. It should look like a lazy s. At equilibrium all the acid is neutralized. There should be a slight slant at the beginning and end of your titration. There it levels out.
2007-04-06 06:32:32 · answer #1 · answered by Anonymous · 0⤊ 0⤋
the pH of a weak acid is higher than that of a strong since the weak acid is only partialy dissociated.
So depending on the acid you start with a ph of about 3 . Have the pK at half heutralization and a pH> 7 at complete neutralization
2007-04-06 12:51:08 · answer #2 · answered by maussy 7 · 0⤊ 0⤋