Harga pH larutan garam CH3COONa 0,04 M jika diketahui Ka CH3COOH = 10^-5
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Harga pH larutan garam CH3COONa 0,04 M jika diketahui Ka CH3COOH = 10^-5
1 Jawaban
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1. Jawaban AmalliaR
M = 4x10^-2
Ka = 10^-5
OH^- = √Ka.M
= √10^-5. 4.10^-2
= 2x10^-3,5
pOH = -log OH^-
pOH = -log 2x10^-3,5
pOH = -3,5 - log 2
pH = 14 - pOH