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konsep mol

Authored by restina baringbing

Chemistry

University

Used 4+ times

konsep mol
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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Bila tetapan Avogadro = L dan massa molar gas amonia = Mr g/mol, maka dalam 10 mol gas amonia terdapat molekul sebanyak....

10

10 L

L/10Mr

10 Mr L

10 L/Mr

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Jika pada STP volum dari 4,25 gram gas sebesar 2,8 liter, maka massa molekul relatif gas tersebut adalah....

A. 26

B. 28

C. 30

D. 32

E. 34

26

28

30

32

34

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

5 mol gas N2 berada pada suhu 27°C pada tekanan 1,5 atm. Volume gas N2 tersebut adalah....

A. 22,40 liter

B. 24,80 liter

C. 41,00 liter

D. 56,20 liter

E. 82,00 liter

22,4 L

24,8 L

41 L

56,2 L

82 L

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

14 gram suatu pada STP (ooC,1atm ) mempunyai volume 11,2 L ,maka massa molekul relatif gas tersebut adalah....

14

24

28

32

44

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Gas propana (C3H8) terbakar menurut persamaan reaksi

C3H8 (g) + O2 (g) ------> CO2(g) + H2O(l) (belum setara)

Volume oksigen (T,P) yang diperlukan untuk membakar sempurna 2 liter propana ( T,P) adalah....

5 liter

10 L

15 L

30 L

35 L

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Di ketahui massa atom relatif (Ar) C = 12; O = 16 ; K = 39) , maka massa 2 mol K2CO3 adalah....

138 gram

200 gram

250 gram

276 gram

300 gram

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Volume 7,5 gram gas NO pada suhu 0°C dan tekanan 1 atmosfer adalah….(Ar N=14;O=16)

5,6 L

11,2 L

22,0 L

22,4 L

44,0 L

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