Jawabanmu

2014-01-15T12:27:59+07:00
M = 3,92 , mr = 2.h+1.s+4.o=2.1+32.1+4.16=98 , v=2
[H+] = m/mr/v . n=3,92/98/2 . 2 =0,04

pH = -log[H+]= -log4.10^-2=2-log4