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Calculate the [OH^(-)] in 0.01M aqueous ...

Calculate the `[OH^(-)]` in `0.01M` aqueous solution of `NaOCN(K_(b)` for `OCN^(-)=10^(-10)) :`

A

`10^(-6)` M

B

`10^(-7)` M

C

`10^(-8)` M

D

None of these

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