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PERHITUNGAN KIMIA

Authored by FERA DESYANA

Chemistry

1st Grade

Used 355+ times

PERHITUNGAN KIMIA
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10 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Jika diketahui massa molar gas CO2 adalah 44 gram/mol, jumlah mol dari 22 gram gas CO2 adalah….

0,2 mol

0,5 mol

1 mol

2 mol

5 mol

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Sebanyak 10 gram batu kapur (CaCO3) jika dinyatakan dalam satuan mol adalah…. ( Ar Ca = 40, C = 12, dan O = 16)

0,1 mol

0,2 mol

0,3 mol

0,4 mol

0,5 mol

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Suatu senyawa memiliki massa molar 60 gram/mol. Massa 0,25 mol senyawa tersebut adalah…

10 gram

12 gram

15 gram

20 gram

24 gram

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui massa atom relatif H = 1, C = 12, dan O = 16. Massa 3 mol C2H5OHadalah....

46 gram

92 gram

128 gram

138 gram

148 gram

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Jumlah molekul CH4 yang terdapat dalam 4 gram gas CH4 (Mr = 16) adalah…. ( bilangan Avogadro = 6 x 10 23

1,5 x 10 22

3,01 x 10 22

1,5 x 10 23

3,01 x 10 23

6,02 x 10 23

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Volume 11 gram gas CO2 pada keadaan standar adalah…. (Ar C = 12, dan O = 16)

1, 12 liter

2,8 liter

5,6 liter

11,2 liter

22, 4 liter

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Pada keadaan STP sebanyak 11,2 liter gas N2 jika ditimbang memiliki massa sebesar… ( Ar N = 14 )

7 gram

14 gram

28 gram

32 gram

40 gram

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