Multiple Choice
A popular buffer solution consists of carbonate (CO32−) and hydrogen carbonate (HCO3−) conjugate acid-base pair. Which, if any, of the following such buffers can neutralize the greatest amount of added hydrochloric acid, while remaining within its buffer range?
A) 1 L of 0.9 M CO 3 2− and 0.1 M HCO 3 −
B) 1 L of 0.1 M CO 3 2− and 0.9 M HCO 3 −
C) 1 L of 0.5 M CO 3 2− and 0.5 M HCO 3 −
D) 1 L of 0.1 M CO32− and 0.1 M HCO3−
E) They can all neutralize the same amount of hydrochloric acid.
Correct Answer:

Verified
Correct Answer:
Verified
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