Konsep mol, hukum dasar dan stoiciometri,
Quiz
•
Chemistry
•
12th Grade
•
Medium
Nursamsiah Nursamsiah
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25 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Di dalam rumus kimia senyawa K2CO3 terdapat ….
1 atom K, 1 atom C, 1 atom O3
2 atom K, 1 atom C, 2 atom O
1 atom K, 1 atom C, 1 atom O3
2 atom K, 1 atom C, 3 atom O
2 atom K, 2 atom C, 3 atom O
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perbandingan antara massa 1 atom oksigen dengan 1/12 massa 1 atom 12C adalah .....
massa 1 atom oksigen
massa 1 molekul oksigen
massa atom oksigen
massa atom relatif oksigen
massa relatif molekul oksigen
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
32
24
18
27
54
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5,4 gram
6,0 gram
12,0 gram
21,6 gram
6,7 gram
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Di antara kelompok senyawa berikut yang merupakan rumus empiris adalah . . . .
P2O5 dan CH2O
P4O10 dan C4H8
(COOH)2 dan C5H6
C6H12O6 dan C2H6O
C3H8 dan C6H14
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tetapan Avogadro : L = 6,02 x 1023 dan Ar : C = 12, O = 16, maka 22 gram gas karbon dioksida mengandung ….
1,32 x 1021 molekul
3,01 x 1021 molekul
6,02 x 1024 molekul
3,01 x 1023 molekul
6,02 x 1023 molekul
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Prosentase terbanyak dari unsur nitrogen terdapat pada pupuk ….
CO(NH2)2
(NH4)2 SO4
NaNO3
NH4NO3
Ca(NO3)2
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