Jawabanmu

2014-02-21T18:30:10+07:00
POH=(kw/ka.M)^1/2 (karena bersifat basa)
pOH=14-pH
pOH=14-9
pOH=5
10^-5=(10^-14/10^-5.M)^1/2
10^-10=10^-14/10^-5.M
M=10^-1
M=gr/mr.1000/ml
10^-1=gr/98.1000/100
gr=98.10^-2