
Ujian Akhir Kimia 2022/2023
Authored by NANDA ANNISA
Chemistry
10th Grade

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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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