(1) Recall the Henderson-Hasselbalch equation:
pH = 3.5
(2) Calculating for the moles of NaOH, HNO2 and KNO2
mol NaOH = 0.0063 moles
mol HNO2 = (0.1 M) (0.5 L) = 0.050 moles
mol KNO2 = (0.15 M) (0.5 L) = 0.075 moles
A 500.0-mL buffer solution is 0.100 M in HNO2 and 0.150 M in KNO2. Determine whether or not 250 mg NaOH would exceed the capacity of the buffer to neutralize it.
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