
Elektrokimia: Elektrolisis dan Sel Galvanik
Flashcard
•
Chemistry
•
12th Grade
•
Hard
Risnayanti Risnayanti
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4 questions
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1.
FLASHCARD QUESTION
Front
Sebuah sel elektrolisis dialiri arus listrik sebesar 2 ampere selama 30 menit. Hitung jumlah mol elektron yang terlibat dalam proses tersebut! (Diketahui: 1 mol e− = 96.500 coulomb)
Back
0,0373 mol e−
2.
FLASHCARD QUESTION
Front
Larutan CuSO4 dielektrolisis menggunakan arus 2 A selama 1 jam. Hitung massa logam tembaga yang diendapkan pada katoda! (Diketahui: Ar Cu = 63,5 dan F = 96.500 C/mol e−; reaksi: Cu2+ + 2e− → Cu)
Back
2,37 gram
3.
FLASHCARD QUESTION
Front
Jika arus sebesar 3 ampere digunakan untuk mengendapkan perak dari larutan AgNO3 selama 20 menit, hitung massa perak yang dihasilkan! (Diketahui: Ar Ag = 108, F = 96.500 C/mol e−, reaksi: Ag+ + e− → Ag)
Back
4,03 gram
4.
FLASHCARD QUESTION
Front
Dalam elektrolisis larutan garam suatu logam M, arus 2 A dialirkan selama 40 menit dan dihasilkan endapan logam sebanyak 1,37 gram. Jika Ar M = 27 dan F = 96.500 C/mol e−, tentukan valensi logam M!
Back
+1
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