
materi hukum faraday 1
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Chemistry
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KG
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Hard
Askesda Prabowo
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Materi Hukum Faraday 1
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Contoh Soal 1
Arus listrik sebesar 10 A dilairkan selama 16 menit kedalam larutan CuSO4 (Ar Cu=63,5 ; S=32 ; O=16) berapa masa zat yag mengendap di Katoda ? (3,16 gram)
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Contoh Soal 2
Berapa gram zink (Ar Zn= 65) terbentuk di Katoda, jika arus listrik 5 A dialirkan melalui larutan ZnSO4 selama 1 jam! (6.06 gram)
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Contoh Soal 3
Kedalam 200 mL AgNO3 0,1M dialirkan arus listrik sejumlah 965 coulumb :
a. Hitung masa Ag (ar Ag=108) yang mengendap ?
b. Hitung volume gas yang terbentuk dalam ke adaan STP (56 ml)
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Pada elektrolisis larutan CuSO4 dihasilkan 25,4 gram endapan Cu pada katode. Hitunglah volume gas (0 oC, 1 atm) yang dibebaskan pada elektrolisis larutan H2SO4 encer dengan jumlah arus yang sama Ar Cu = 63,5; O = 16 (8.96L)
Contoh Soal 4
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Contoh Soal 5
Arus sebesar i ampere dapat mengendapkan 2,16 gram perak dari larutan perak nitrat dalam 1 jam.
Berapa liter gas oksigen dapat dihasilkan jika arus yang sama dialirkan ke dalam larutan asam sulfat
selama 2 jam? Ar Ag = 108 (0,224 L)
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SOAL UN KIMIA 2019
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SOAL UN KIMIA 2018
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