Multiple Choice
A buffer solution is prepared by placing twice the concentration of propanoic acid (C2H5COOH,Ka=1.34 ×10−5) as the concentration of its conjugate base sodium propanoate into a flask.The pH of the resulting buffer solution is best described as which of the following?
A) less than 4.87
B) 4.87
C) between 4.87 and 9.00
D) greater than 11.00
E) Undeterminable; the concentrations of the acid and conjugate base must be given.
Correct Answer:

Verified
Correct Answer:
Verified
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