calculate `[H^(o+)]` and `[overset(Θ)OH]` in a `0.1M` solution of weak monoacitic base which is `2.0%` ionised. What is the `pH` of solution.

Explanation

`{:(,B +,H_(2)O,hArr,BH^(oplus) ,+overset(Theta)(O)H),("Initial",0.1,-,0,,0),("concentration",,,,,),("Equilibrium",0.1(1-alpha),-,C alpha,,C alpha),("concentration",,,,,):}`
Given `alpha = (2.0)/(100) = 2xx10^(-2)`
`[overset(Θ)OH] = C alpha = 0.1 xx2xx10^(-2) = 2xx10^(-3)M`
`pOH =- log (2xx10^(-3)) =- 0.3 +3 = 2.7`
`pH = 14 - 2.7 = 11.3`.