Jawabanmu

2014-06-03T19:18:06+07:00
[H+] = √Kw/Ka x M
= √10^-14/1.8 x 10^-5 x 10^-1
= √10^-9 x 10^-1 / 1.8
= √0.55 x 10^-10
= 0.7 x 10^-5 atau 7 x 10^-6