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k i m i a i t u s a n g a t a m a t i n d a h. THX
Penyetaraan Reaksi Redoks dengan Metode Bilangan Oksidasi
1.melibatkan penambahan ion tertentu untuk menyamakan muatan
2.2Al + 3Cl₂ → AlCl₃
3.14
4.1, 1, dan 1
5.5
6.perubahan bilangan oksidasi atom S adalah dari 2 menjadi 2,5
7.4
8.8
9.960 gram
10.22,4 L
Potensial Sel
1.merupakan hasil penjumlahan potensial sel reduksi dengan oksidasi
2.+ 2,23 V, katode Sn
3.Zn∣∣Zn2+∣∣∣∣Cr3+∣∣Cr
4.+1,07 V
5.Ni
6.anode Ca, katode Co
7.3 dan 4
8.Voltmeter
9.+ 0,97 V
10.apabila logam Mn dijadikan katode, maka potensial sel akan bernilai negatif
Mengenal Sel Elektrolisis
1.jenis reaksi yang berlangsung pada anode dan katode kedua sel sama
2.pada katode, elektron akan keluar masuk
3.wadah, elektrode, larutan elektrolit, dan baterai
4.menyuplai elektron ke katode
5.merupakan sel elektrokimia
6.P atau R
7.3Mg²⁺ + 2Al ⇌ 3Mg + 2Al³⁺
8.E
9.3, 4, dan 5
10.Y – X – Z
Hukum Faraday
1.udara kering
2.reaksi oksidasi logam oleh oksigen dan air
3.potensial reduksi logam < oksigen
4.56,28 gr
5.katalisator
6.dapat ditembus oleh udara dan air
7.perkaratan besi akan terjadi sampai ke lapisan besi selanjutnya, sedangkan pada aluminium hanya pada permukaan saja
8.oksigen
9.Mg – Al – Mn – Fe
10.biaya perawatan logam berkurang
Mengenal Korosi
1.0,099
2.0,002 F
3.1,29 menit
4.193000 C
5.1,8 : 1
6.3 F
7.200
8.2 – log 4
9.0,08 gr
10.4825 C
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