Elektrolisis 1 elektrolisis larutan cuso 4 a alat dan

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B. Elektrolisis 1. ELEKTROLISIS LARUTAN CuSO 4 a. Alat dan Bahan - Pipa U - Kabel + penjepit buaya - Elektroda Karbon - Baterai kotak - Statif - CuSO 4 0,5 M b. Cara Kerja: Masukkan larutan CuSO 4 dalam pipa U hingga 1 cm dari ujung pipa Celupkan elektroda pada kedua sisi pipa U dan hubungkan kabel dengan baterai Amati apa yang terjadi pada ruang katoda (-) dan anoda (+) Masukkan 3 tetes indikator pp pada ruang katoda dan anoda Amati perubahan warna yang terjadi Tulis persamaan setengah reaksinya! c. Hasil Pengamatan - Saat elektroda dicelupkan dalam dua sisi pipa U yang berisi larutan CuSO 4 dan dihubungkan dengan listrik, pada ruang anoda (+) terdapat sedikit gelembung kecil. - Saat larutan CuSO 4 diberi tambahan indikator pp (berwarna biru) 3 tetes, pada ruang anoda (+) larutan menjadi berwarna biru keunguan dan pada ruang katoda (-) larutan menjadi berwarna biru pudar. - Persamaan setengah reaksi: CuSO 4 → Cu 2+ + SO 4 2- Katoda (C) : Cu 2+ + 2e → Cu Anoda (C) : 2 H 2 O → 4H + + O 2 + 4e 2 CuSO 4 + 2 H 2 O → Cu + 2 SO 4 2- + 4H + + O 2 X2 X2 X1
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2.) Elektrolisis Larutan Na 4 So 4 0,5 M a. Alat dan Bahan - Pipa U - Kabel + penjepit buaya -
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