Multiple Choice
How many moles of sodium acetate must be added to 500 mL of 0.25 M acetic acid solution to produce a buffer with a pH of 4.94? The pKa of acetic acid is 4.74.
A) 0.011 moles
B) 0.021 moles
C) 0.125 moles
D) 0.198 moles
E) 0.206 moles
Correct Answer:

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Correct Answer:
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