Jawabanmu

2014-03-03T14:28:13+07:00
Ph= 9 + log 2
ph = 9,3
H= 5 x 10^-10
M=gr/Mr X 1000/ml
5X10^-10= gr/32 X 1000/500
gr= 8X 10^-6/1000
gr= 8 x 10^-11 gram
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