Tentukan ph larutan 0.4 m NH4NO3 (1 x 10-5

NH4NO3 → Campuran Asam Kuat dan Basa Lemah

[H+] = √Kw / Kb. n . [kation]
[H+] = √10^-14 / 10^-5 . 1. (0,4)
[H+] = √10^-9 x 4 x 10^-1
[H+] = √4 x 10^-10
[H+] = 2 x 10^-5

pH = -log[H+]
pH = -log 2 x 10^-5
pH = 5 - log2