
ulangan stoikiometri
Authored by NESTALISTA ZAI
Chemistry
11th Grade
Used 1+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
Sebanyak 11,2 gram serbuk besi (Fe) dipanaskan secara sempurna dengan 6,4 gram serbuk belerang (S), sesuai reaksi:
Fe + S → FeS
Senyawa besi(II) sulfida (FeS) yang terbentuk sebanyak .....
6,4 gram
11,2 gram
12,8 gram
17,6 gram
2.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
Jika diketahui massa atom relatif H = 1, S = 32, O = 16 dan massa molekul relatif (NH4)2SO4 = 132, maka massa atom relatif N adalah .....
7
12
14
20
3.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
Diketahui Ar C = 12, O = 16, Na = 23, dan S = 32. Gas-gas berikut ini mempunyai massa 32 gram, kecuali .....
0,4 mol SO3
2 mol CH4
0,5 mol SO2
0,5 mol C4H10
4.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
Jumlah mol dari 29,8 gram amonium fosfat ((NH4)3PO4) (Ar N = 14, H = 1, dan P = 31) adalah .....
0,05 mol
0,15 mol
0,20 mol
0,25 mol
5.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
Jika Ar C = 12 dan O = 16, maka volume dari 8,8 gram gas CO2 pada keadaan standar (STP) adalah .....
2,24 liter
4,48 liter
6,72 liter
8,96 liter
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