
KUIS KIMIA ST
Quiz
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Chemistry
•
University
•
Medium
30 SAFINA DYAH ANGGRAENI XII MIPA 5
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10 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Diketahui reaksi A2(g) + B2(g) ⇄ 2AB(g) memiliki konstanta kesetimbangan sebesar 5x10-3. Pada suatu percobaan, sebanyak 3 mol A2, 3 mol B2, dan 2 mol AB dicampurkan ke dalam wadah yang memiliki volume 15 L. Tentukan nilai kuosien reaksinya dan apakah campuran berada dalam keadaaan setimbang?
Tulis jawaban dengan format:
nilai kuosien, setimbang/tidak setimbang
2.
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1 min • 1 pt
Diketahui larutan Ba(OH)2 memiliki konsentrasi sebesar 0,01 M. Berapa nilai pH larutan tersebut?
3.
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1 min • 1 pt
Sebanyak 100 mL larutan penyangga mengandung 10 mmol H2S dan HS-. Jika ke dalam larutan tersebut ditambahkan 2 mL HCl 0,1 M, tentukan pH akhir larutan tersebut! (Ka H2S = 1 x 10-6).
4.
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1 min • 1 pt
Pada eksperimen dalam reaksi 2H2 + O2 → 2H2O, memperoleh data yang terlihat dalam tabel. Tentukan orde reaksi H2! (tulis dalam angka)
5.
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1 min • 1 pt
Tentukan nilai potensial sel jika anodanya adalah Zn dengan Eo = -0,76 V, dan katodanya adalah Ag dengan Eo = +0,80 V!
(jangan lupa menuliskan tanda positif/negatif beserta satuannya)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Senyawa karbonil yang sering digunakan sebagai zat aditif dalam industri makanan karena dapat menjaga makanan agar tetap segar, tahan lama, dan meningkatkan cita rasa.
Aldehida
Keton
Ester
Asam karboksilat
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Apa nama iupac dari senyawa organik berikut?
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