Jawabanmu

Jawaban paling cerdas!
2014-05-03T00:28:31+07:00
Mg(OH)2=Mg + 2OH
ksp= 4s^3
4.10^-12=4s^3
s=10^-4
n=10^-4 * 0,5L(volum)
= 5.10^-5
massa= n*mr
=5.10^-5*58
=2,9.10^-3
2 5 2