Diketahui 0.04 M H4OH , Kb=1×10-5 tentukan pH
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Diketahui 0.04 M H4OH , Kb=1×10-5 tentukan pH
1 Jawaban
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1. Jawaban ayynanu
[OH-] = √(Kb x M)
[OH-] = √(10^-5 x 4 x 10^-2)
[OH-] = √(4 x 10^-7)
[OH-] = 2 x 10^-3,5
pOH = 3,5 - log2
pH = 14 - pOH
pH = 14 - (3,5 - log2)
pH = 10,5 + log2