What is the pH of a buffer solution prepared by dissolving 25.5 g NaC2H3O2 in a sufficient volume of 0.550 M HC2H3O2 to make 500.0 mL of buffer?
A) 4.74
B) 4.68
C) 4.91
D) 4.57
E) 4.79
Correct Answer:
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