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A 50 mL solution of weak base BOH is tit...

A 50 mL solution of weak base BOH is titrated with `0.1N HCI` solution. The pH of solution is found to be `10.04` and `9.14` after the addition of `5.0mL` and `20.0` mL of acid respectively. Find out `K_(b)` for weak base.

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