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. You can neglect the change in volume when sodium acetate dissolves in the acetic acid solution.
A) 0.011 moles
B) 0.021 moles
C) 0.125 moles
D) 0.198 moles
E) 0.206 moles
Correct Answer:
Verified
Correct Answer:
Verified
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