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Verified answer
Ca(OH)2 -> Ca2+ + 2OH-1 mmol 1 mmol 2 mmol
NaOH -> Na+ + OH-
4 mmol 4 mmol 4 mmol
M = 2 + 4 / 10 + 40 = 6 / 50 M
6/50 . 50 = M2 . 250
M2 = 0.024 M (D) -> Jawab
Verified answer