Posted by Ken on Monday, April 14, 2008 at 6:04pm.
Can you use the Henderson-Hasselbalch equation to decide?
pH = pKa + log [(base)/(acid)]
pKa for NH3 is about 4.74.
Calculate the pH of a 0.1 M solution of NH3, then add 0.1 mol NH4NO3 and see which way it goes.
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