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mol = 3,7/74
mol = 0,05 mol
Molaritas Ca(OH)₂ = mol/Volume dalam Liter
Molaritas = 0,05/1
Molaritas = 0,05
[OH⁻] = Molaritas x Valensi basa
[OH⁻] = 0,05 x 2
[OH⁻] = 0,1 M
pOH = -log [OH⁻]
pOH = -log [0,1]
pOH = 1
pH = 14 -pOH
pH = 14 - 1
pH = 13
Ok?