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Approximate pH of 0.01 M NaHA is calcula...

Approximate pH of 0.01 M NaHA is calculated by :
`(K_(a1)=10^(-6)` and `K_(a2)=10^(-8)` are ionization constants of `H_(2)A)`

A

`pH=7+(pK_(a1))/2+(logC)/2`

B

`pH=7-(pK_(a1))/2-(logC)/2`

C

`pH=(pK_(a1)+pK_(a2))/2`

D

None of these

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