Question

Doubt:

Answer 1

Is POH+PH=14 always? Or is there any condition to use it? Please explain.

Answer 2

Well, I have also learnt that p(OH) + p(H) = 14...

Answer 3

its relative scale :) absolute scale is Ka values :) this PH and POH is just for the free convenience :) to say the acid or base

Answer 4

maybe ,,,,, they found that concentration of H+ ions in water was 10^-7 M and since water is neutral ,, the concentration of OH- also must be the same.........so taking -ve log and adding up ==> 14 (just guessing)