
Tes Olimpiade Kimia
Authored by Trysna Saveriana
Chemistry
1st Grade
Used 6+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suatu sel elektrokimia memiliki diagram sel sebagai berikut:
Pt | Pu3+ (aq), Pu4+ (aq) || Cl2 (g), Cl (aq) | Pt
Potensial sel standar yang terukur adalah 0,35 volt dan potensial reduksi klor adalah 1,36 V.
Potensial reduksi standar dari Pu4+|Pu3+ adalah ….
+2,37 V
+1,01 V
-1,71 V
-1,01 V
+1,71 V
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Senyawa berikut ini manakah yang mempunyai titik didih paling tinggi….
CH3CH2CH2CH2CH2CH3
CH3CH2OH
CH3CH2CH(OH)CH3
CH3CH2(CH2)2CHO
CH3(CH2)5OH
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Senyawa yang menyerap sinar UV tampak dengan panjang gelombang terpanjang adalah ….
Benzene
Naftalena
Tetrasena
Antrasena
1,3-sikloheksadiena
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Urutan besar energy kisi untuk FeCl3, FeCl2 dan Fe2O3 adalah ….
Fe2O3 < FeCl3 < FeCl2
FeCl2 < Fe2O3 < FeCl3
FeCl2 < FeCl3 < Fe2O3
FeCl3 < FeCl2 < Fe2O3
FeCl3 < Fe2O3 < FeCl2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sebanyak 1,50 gram sampel suatu biji yang mengandung perak dilarutkan. Semua Ag yang larut diubah menjadi 0,124 gram Ag2S. Persen massa Ag dalam biji tersebut adalah …
4,15%
6,41%
7,20%
8,27%
10,8%
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Muscovita adalah salah satu dari mineral mika dengan rumus senyawa KAl2(AlSi3O10)(OH)2. Hasil analisis sejumlah sampel muscovite menunjukkan kandungan Si sebanyak 0,42 gram. Massa Sampel muscovite yang dianalisis adalah ….
4,20 gram
2,98 gram
1,99 gram
1,53 gram
1,26 gram
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sebanyak 1,5 ml sampel larutan asam sulfat dari suatu baterai mobil dititrasi dengan 23,7 ml larutan NaOH 1,47 M menggunakan indicator fenolftalein untuk menentukan titik akhir titrasi. Konsentrasi (dalam satuan molaritas) sampel larutan asam sulfat tersebut adalah….
0,36 M
3,15 M
6,30 M
11,6 M
23,2 M
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