Jawabanmu

2014-02-12T23:42:18+07:00
[H+] HCl = 1x10^-3 . 1 = 10^-3
pH = -log 10^-3
     = 3
[H+] HX = 10^-3
Ka = [H+]/Ma
    = 10^-3/10^-1
    = 10^-2