Jawabanmu

2014-02-20T22:24:15+07:00
Ph=10, POH=14-10= 4 , [OH-]= 10^-4 , pake rumus basa lemah -> [OH-]=akar Kb x Mb , [10^-4]^2 = 1x10^-7 x Mb , Mb= 0,1 M . (Maaf berantakan pake hp soalnya)