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Redoks Dan Elektrokimia - e-Learning Sekolah Menengah Kejuruan

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mol H + 50.0,2= mol = 0, 01mol1000mol logam M = 0,005 mol (lihat koefisien)1,035g Ar M = = 2070,059. Jawaban : DWCuεCu=W εCr0,635=xCr63,52523x = 0,35gram10. Jawaban : D2ClO 3 – + 12H + + 10e – → Cl 2 + 6H 2 O1 mol 5 molJumlah mol elektron = jumlah arus (F) = 511. Jawaban : CReaksi yang menghasilkan gas hidrogen :2H + + 2e – → H 222,4= 1 mol = 2 g22,4WHe2 H 2=W eCu2=x2263,52Cux = 63,5 gram12. Jawaban : AElektrolisis larutan NaClKatoda : 2H 2 O + 2e – → H 2 + 2OH –Anoda : 2Cl – → Cl 2 + 2e –Di katoda larutan bersifat basa, karena terbentuk ion hidroksida

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