QUIZ STOIKIOMETRI
Quiz
•
Chemistry
•
12th Grade
•
Medium
Roni Nasriko
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Hitunglah massa dari 0,2 mol Al! (Ar Al = 27)
2,7 gram
5,4 gram
8,1 gram
10,8 gram
13,5 gram
2.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Berapa volume dari 2 mol gas O2 dalam keadaan standar?
2,24 L
4,48 L
11,2 L
22,4 L
44,8 L
3.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Berapa massa dari 5 liter gas nitrogen (N2) pada 27oC dan tekanan 3 atm? (Ar N = 14)
13,5 gram
17,07 gram
27 gram
34,14 gram
54 gram
4.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Pada suhu dan tekanan tertentu, volume dari 22 gram gas karbon dioksida (CO2) adalah 10 liter. Pada suhu dan tekanan yang sama, berapakah volume dari 8 gram gas oksigen (O2)? (Ar O = 16; C = 12 )
1 L
5 L
10 L
20 L
25 L
5.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Suatu senyawa tersusun dari 52% karbon, 13% hydrogen, dan sisanya oksigen. Rumus empiris senyawa itu adalah …. (Ar C = 12; H = 1; O = 16)
C2H4O
C3H8O
C2H6O
C3H6O
A. C3H8O2
6.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Persentase massa kalsium ( Ca ) dalam batu kapur (CaCO3) adalah …. ( Ar Ca = 40, C = 12, O = 16 )
12%
16%
40%
48%
60%
7.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Aluminium banyak digunakan untuk alat-alat rumah tangga. Berapa gram Al yang terdapat dalam 204 gram aluminium oksida, Al2O3? (Ar Al = 27, O = 16)
13
27
51
54
108
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