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Ujian Akhir Kimia 2022/2023

Authored by NANDA ANNISA

Chemistry

10th Grade

Ujian Akhir Kimia 2022/2023
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26 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Gas SO3 terbentuk sesuai persamaan reaksi 2SO2(g) + O2(g) → 2SO3. Jika volume gas SO3 10 liter, volume gas O2 dan SO2 berturut-turut adalah...

5 liter dan 10 liter

10 liter dan 5 liter

20 liter dan 40 liter

40 liter dan 20 liter

15 liter dan 15 liter

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Massa molekul relatif senyawa Al2(SO4)3 adalah... (Ar Al = 27, S=32, O=16)

187

203

262

342

374

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Massa 1,5 mol H2SO4 adalah... (Ar H = 1, Ar S = 32, Ar O =16)

36,75 gram

65,3 gram

73,5 gram

147 gram

294 gram

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Volume 5,95 gram gas NH3 pada keadaan STP adalah... (Ar N= 14; Ar H=1)

0,35 L

6,40 L

7,84 L

64 L

78,4 L

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sebanyak 6 gram gas hidrokarbon mempunyai volume 4,8 L (RTP). Massa molekul relatif gas hidrokarbon tersebut adalah...

30

40

42

44

58

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jumlah atom karbon yang dikandung oleh 0,5 gram gula tebu (C6H12O6) adalah.... (Ar C =12; Ar H= 1; Ar O=16 dan L = 6,02 × 10^23)

1,08 × 10^22

3,20 × 10^22

9,03 × 10^22

1,08 × 10^23

9,03 × 10^23

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rumus empiris dari stirene, senyawa yang digunakan untuk membuat Styrofoam dengan komposisi 92,3% C dan 7,7 % H adalah.... (Ar C = 12; Ar H)

CH

CH2

C2H2

C2H4

C3H6

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