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Question

A buffer solution is prepared by mixing 10 ml of 1.0 M acetic acid and 20 ml of 0.5 M sodium acetate and then diluted to 100 ml with distilled water. If the pKa of CH3COOH is 4.76, what is the pH of the buffer solution prepared?

A
5.21
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B
4.76
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C
4.34
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D
2.52
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