Quinine is an alkaloid, or naturally occuring base, used to treat malaria. `A 0.05 M` solution of quinine has a `pH` of `9.70` at `25^(@)C`/ The basicity of alkaloids is due to a nitrogen atom that picks up protons from water in the same manner as ammonia does. The `K_(b)` of quinine is `(x.y) xx 10^(-ab)`. The value of 'xyab' is: [Given : log 2 = 0.3]
[For example: If `K_(b)` is `4.2 xx 10^(-07)`, then answer is 4207]

Answer

5008