1.

A buffer solutioncontains 0.1 M of acetic acid and 0.1 M of sodium acetate. What will be its pH, it pK_(a) of acetic acid is 4.75

Answer»

`4.00`
4.75
`5.00`
5.25

Solution :`pH = pK_(a) + log.(["Salt"])/(["ACID"]), pH = 4.75 + log.(0.1)/(0.1)`
`pH = 4.75 + log 1, pH = 4.75`.


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