Konsep mol, hukum dasar dan stoiciometri,

Konsep mol, hukum dasar dan stoiciometri,

12th Grade

25 Qs

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Konsep mol, hukum dasar dan stoiciometri,

Konsep mol, hukum dasar dan stoiciometri,

Assessment

Quiz

Chemistry

12th Grade

Medium

Created by

Nursamsiah Nursamsiah

Used 59+ times

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25 questions

Show all answers

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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