[H+]=cα=10-7
c=1000/18
α=1.8*10-9=1.8*10-7%
ans given is right
Q. One litre of water contains 10-7moles of H+ions.Degree of ionisation of water is----------?
The answer is :1.8*10-7%
no the ans will be 1.8*10-10as [H+]=cα=10-7
and concentration of pure water is 1000/18
putting the value of c one can easily find the ans
[H+]=cα=10-7
c=1000/18
α=1.8*10-9=1.8*10-7%
ans given is right