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1.

For an amine RNH_(2), write an expression for K_(b) to indicate its basic strength.

Answer»

Solution :`R-NH_(2)+H_(2)O RARR R-OVERSET(+)(N)H_(3)+OH^(-)`
`""K=(overset(+)([R-NH_(3)])[OH^(-)])/([R-NH_(2)][H_(2)O])` where K is equilibrium constant
or `""K[H_(2)O]-(overset(+)([R-NH_(3)])[OH^(-)])/([R-NH_(2)])"or"K_(b)=(overset(+)([R-NH_(3)])[OH^(-)])/([R-NH_(2)])`


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