Posted by Pepz on Saturday, March 16, 2013 at 1:04pm.
I would try this. Set up a RICE chart
R......OH^- + NH4^+ ==> NH3 + H2O\
I...0.194.....0.268......0......0
C..-0.194... -0.194....+0.194.....
E.....0.......0.074.....0.194
This ends up being a buffer of NH4Cl/NH3. All of the NaOH is used.
The Henderson-Hasselbalch equation will solve for pH and convert that to OH^-
pH = pKa + log(NH3(/(NH4^+)
Thanks got it!
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