Question

Bantuin nomor 9 sama 10

Answer 1

9) [H+] = akar Ka. M = akar 4 x 10^-5 . 4 x10^-1
= akar 16 x10^-6
= 4 x 10^-3
pH = - log [H+]
= - log 4 x 10^-3
= 3 -log 4