Multiple Choice
A buffer was prepared by adding 2.4 g of ammonium nitrate to 100.0 mL of 0.30 M aqueous ammonia (Kb = 1.8 × 10-5) .To this solution was then added 10.0 mL of 0.30 M aqueous sodium hydroxide,which caused a pH change of ________.
A) 3.0 pH units
B) 0.30 pH units
C) 0.90 pH units
D) 0.09 pH units
E) zero
Correct Answer:

Verified
Correct Answer:
Verified
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