Tentukan Poh Dan Ph basa Ca(OH)2 0,003
Kimia
rahmatriyadi
Pertanyaan
Tentukan Poh Dan Ph basa Ca(OH)2 0,003
1 Jawaban
-
1. Jawaban marcel154
Ca(OH)2 0,003 -> basa kuat
Ca(OH)2 -> Ca^2+ + 2OH^-
[OH-] = 2 × 0,003 = 0,006 = 6 × 10^-3
POH = -log [OH-]
= -log 6 × 10^-3
= 3 - log 6
PH = 14 - POH
= 14 - (3 - log 6)
= 11 + log 6