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A buffer solution is made up of acetic a...

A buffer solution is made up of acetic acid `[pK_(a)=5]` having conc.=1.5M and sodium acetate having conc.=0.15 M. What is the number `OH^(-)` ions present in 1 litre solution?

A

`10^(-10) N_(A)`

B

`10^(-4) N_(A)`

C

`10^(-3) N_(A)`

D

`10^(-6) N_(A)`

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