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ulangan stoikiometri

Authored by NESTALISTA ZAI

Chemistry

11th Grade

Used 1+ times

ulangan stoikiometri
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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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