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A buffer solution is prepared by mixing ...

A buffer solution is prepared by mixing 10ml 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 `pk_(a)` of `CH_(3)COOH` is 4.76, what is the pH of the buffer solution prepared?

Text Solution

Verified by Experts

The correct Answer is:
4.76
`pH = pK_a + log ""(["Salt"])/(["Acid"]) = 4.76 + log ((20xx0.5)/(10)) =4.76`
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