Jika 4 gram NaoH(Mr =40) dilarutkan dalam air hingga volume 100ml .Tentukan konsentrasi ion OH- tersebut?
nalfinaf
● mol NaOH = massa per Mr = 4 per 40 = 0,1 ● Molaritas NaOH = mol per Volume = 0,1 per 0,1 = 1 ● [OH-] = b × Mb = 1 × 1 = 1 ● Jadi, [OH-] = 1 M
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