Jawabanmu

2014-04-04T19:49:07+07:00
Mudh2an benar 
[h+] = ka x asam lemah / garam 
10^-5 = 10^-5 x v x 0,1 / 20
20 x 10^-5 = 10^-6 x v
v ch3cooh = 200 ml
3 3 3