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CH3COONa (garamnya) --> CH3COOH +NaOH (basa kuat)
karena ada asam lemah dan garamnya, maka kita pake aja rumus hidrolisis garam dari asam lemah dan basa kuat.
pH = 14 + log √Kw/Ka x M
pH = 14 + log √10^-14/10^-5 x 0,001
pH = 14 + log √10^-11
pH = 14 + log 10^-6,5
pH = 14 - 6,5 = 7,5
cmiiw ya :)