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A hand book states that the solubility o...

A hand book states that the solubility of `RNH_(2)` (g) in water at 1 atm and `0^(@)`C is 22.41 volumes of `RNH_(2)`(g) per volume of water. `(pK_(b) of RNH_(2)=4)` Find the max. pOH that can be attained by dissolving `RNH_(2)` in water:

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