1. Hitung pH larutan 100 ml Nh4OH 0,1 M (kb=10 pangkat min 1) 2. Hitung pH larutan 500 mL KOG 0.05M

Question

Kimia Diposting : 2018-02-16 Diupdate : 2021-08-18 syifamanurung

Pertanyaan

1. Hitung pH larutan 100 ml Nh4OH 0,1 M (kb=10 pangkat min 1)
2. Hitung pH larutan 500 mL KOG 0.05M

Answer 1

1.
pH = 13 + log 1

2.
pH >7

Answer 2

1. [H+]² = kb.M = 10^-1 x 10^-1 = 10^-2
pH = - log10^-2 = 2
2. [H+] = b.M = 1 x 0.05 = 5. 10^-2
pH = - log 5.10^-2
= 2-log 5