1.

A buffer solution contains 0.1 M each of acetic acid and sodium acetate. The pH of the buffer solution is (pK_(a)(CH_(3)COOH)=4.75) :

Answer»

`4.75`
`5.75`
`6.75`
`9.25`

SOLUTION :`pH=pK_(a)+"LOG"(["SALT"])/(["ACID"])`
`=4.75+log 1=4.75`


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