
SEL VOLTA
Authored by Fatima Tujjahro
Chemistry
12th Grade
Used 2+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Suatu sel volta ditulis dalam diagram sel sebagai berikut:
Cr (s)| Cr3+(aq) ∥ Cu2+ (aq)|Cu (s)
Persamaan reaksi dari notasi sel di atas adalah....
Cu2+(aq) + Cr (s) → Cu (s) + Cr3+ (aq)
Cu (s) + Cr3+ (aq) → Cu2+(aq) + Cr (s)
3 Cu2+(aq) + 2 Cr (s) → 3 Cu (s) + 2 Cr3+ (aq)
Cu2+(aq) + Cr (s) → Cu (s) + Cr2+ (aq)
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
1. Pada katode terjadi reaksi reduksi
2. Pada anode terjadi reaksi oksidasi
3. Pada sel volta, katode termasuk elektrode negative
4. Logam yang memiliki potensial lebih tinggi berperan sebagai elektrode positif
5. Logam yang memiliki potensial lebih rendah berperan sebagai elektrode negatif
Dari pernyataan di atas yang tidak sesuai dengan kaidah sel volta adalah ...
1
2
3
4
5
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika diketahui :
Zn+2 / Zn Eo = –0, 76 Volt
Cu+2 / Cu Eo = +0,34 Volt
Maka besarnya potensial sel (Eo sel) Volta tersebut adalah ...
–0,42 Volt
–1,10 Volt
+0,42 Volt
+1,10 Volt
+11,0 Volt
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Berdasarkan data.
Fe2+ + 2e- → Fe E0 = - 0,44 V
Pb2+ + 2e- → Pb. E0 = - 0,13 V
Zn2+ + 2e-→ Zn. E0 = - 0,75 V
Sn2+ + 2e- → Sn. E0 = - 0,14 V
maka reaksi yang tidak dapat berlangsung dalam keadaaan standar, adalah ....
Fe2+ + Zn → Fe + Zn2+
Pb2+ + Fe → Pb + Fe2+
Sn2+ + Zn → Sn + Zn2+
Zn2+ + Pb → Zn + Pb2+
Sn2+ + Fe → Sn + Fe2+
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Perhatikan gambar berikut!
Yang bukan termasuk contoh sel Volta yang digunakan dalam kehidupan sehari-hari adalah ....
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui E0 =
Zn2+/Zn = -0,76 V
Cu2+/Cu = +0,34 V
Fe2+/Fe = -0,41 V
Ag+/Ag = +0,80 V
Pb2+/Pb = -0,13 V
Sel kimia yang berikut menghasilkan E0 sel yang paling besar adalah…….
(E0 potensial sel)
Zn/Zn2+(aq) // Cu2+(aq) /Cu(s)
Fe/Fe2+(aq) // Ag+(aq) /Ag(s)
Zn/Zn2+(aq) // Ag+(aq) /Ag(s)
Pb/Pb2+(aq) // Cu2+(aq) /Cu(s)
Zn/Zn2+(aq) // Pb2+(aq) /Pb(s)
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jika diketahui bahwa logam E0 Sn = -0,14 V dan E0 Ag = +0,80 V, maka pernyataan yang tepat adalah...
perak bertindak sebagai anoda
elektron mengalir dari Ag ke Sn
potensial selnya adalah +0, 66 V
logam Sn akan larut sedangkan logam Ag akan mengendap di katoda
notasi sel nya adalah Ag | Ag+ || Sn2+ | Sn
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