Jawabanmu

2014-06-06T17:27:01+07:00
G Mg(OH)2 =5,8gr
Vtotal=200mL=0,2L
Mr Mg(OH)2=24+34=58
n Mg(OH)2=G/Mr=5,8/58=0,1 mol
M=n/V=0,1/0,2=0,5M
[OH-]=M.valensi=0,5*2=1
pOH=log1
pH=14-log1


tapi di pilihan gandanya ga ada, gimana?