You have 500.0 mL of a buffer solution containing 0.30 M ammonia (NH3) and 0.20 M ammonium chloride (NH4Cl) . What will the pH of this solution be after the addition of 20.0 mL of 1.00 M NaOH solution? [Kb = 1.8 × 10-5]Hint: Adding NaOH will change the amounts of both the acid and the base. Calculate the pH based on the new amounts.
A) 4.74
B) 9.26
C) 9.58
D) 9.20
E) 9.29
Correct Answer:
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