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NaOH + CH3COOH -------> CH3COONa + H OH
M 50 mL 0,2 M 50 mL 0,4 M
10 mmol 20 mmol - -
B 10 mmol 10 mmol 10 mmol 10 mmol
S 0 10 mmol 10 mmol 10 mmol
[H+] = Ka . mmol CH3COOH / mmol CH3COONa
= 18 x 10 pangkat -6 . 10 / 10
= 18 x 10 pangkat -6
pH = - log 18 x 10 pangkat -6
= 6 - log 18