
ELEKTROKIMIA
Authored by Rizky Puspitadewi
Chemistry
12th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pada sel elektrokimia, elektroda dimana elektron masuk ke
dalam larutan dan reaksi yg terjadi di elektroda tersebut adalah
anoda, oksidasi
katoda, oksidasi
anoda, reduksi
katoda, reduksi
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
ada notasi sel Pb|Pb2+||Ag+|Ag , reaksi yang terjadi di anoda
adalah ...
Pb2+ + 2e- → Pb
Ag+ + e- → Ag
Pb → Pb2+ + 2e-
Ag → Ag+ + e-
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pada notasi sel volta, dua garis vertikal "||" melambangkan ...
perbedaan fase
jembatan garam
kabel penghubung
elektroda hidrogen standar
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Potensial sel dari rangkaian yang memiliki notasi
Pb|Pb2+||Mg2+|Mg adalah ...
-2,24 V
+2,24 V
-2,5 V
+2,5 V
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Zat yang jika dielektrolisis dengan elektroda grat
menghasilkan gas H2 adalah ...
Lelehan NaCl
Lelehan CuSO4
Larutan MgSO4
Larutan AgNO3
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berapa massa nikel yang terbentuk dari larutan nikel (II) klorida
dengan arus 0,25 A selama 10 jam (ar Ni = 59)
12 gram
0,046 gram
5,5 gram
2,75 gram
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Larutan AgNO3 dan CrSO4 dielektrolisis dg arus yg sama. massa
perak yg diendapkan 5,4 gr, hitung massa krom yg terbentuk
1,3 gram
2,6 gram
13 gram
26 gram
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