Jawabanmu

2014-06-06T20:35:36+07:00
PH = -log [H]
3,5 = -log [H]
[H] = 10^-3,5 M

[H] = akar(Ka.M)
10^-3,5 = akar(Ka.10^-2)
10^-7 = Ka.10^-2
Ka = 10^-5
5 3 5