Diketahui massa urea, CO(NH2)2 (Ar C=12, O=16, N=14, H=1) adalah 42 g. Jumlah mol urea tersebut adalah ….

Quiz Kimia Dasar

Quiz
•
Chemistry
•
11th Grade
•
Medium
SP Simarmata
Used 3+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
0,4
0,7
0,8
1,0
0,5
2.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Diketahui Ar H = 1, C = 12, O = 16, Na = 23, S = 32. Gas-gas dibawah ini yang mempunyai massa 32 gram, kecuali….
0,4 mol SO3
0,5 mol SO2
1 mol O2
2 mol CH4
0,5 mol C4H10
3.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Diketahui Ar S= 32, O=16, dan massa 0,5 mol XSO4 adalah 76 g. Massa atom relatif (Ar) X adalah ….
72
144
96
64
56
4.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Jika diketahui Ar C=12, O=16 dan bilangan Avogadro = 6,02 x 1023 maka 22 g CO2 mempunyai jumlah molekul ….
3,01 x 1021
3,01 x 1022
3,01 x 1023
6,02 x 1022
1,204 x 1023
5.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Massa dari 1,204 x 1022 molekul NH3 (Ar N=14, H=1) adalah …. (Bilangan Avogadro = 6,02 x 1023)
1,70 g
0,17 g
0,34 g
3,40 g
2,80 g
6.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Suatu senyawa dengan rumus SFn (Ar S = 32, F=19) sebanyak 0,35 gram mengandung 3,01 x 1021 molekul. Nilai n adalah….
5
2
3
6
4
7.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Volume 0,05 mol gas nitrogen (Ar N=14) pada keadaan standar adalah ….
3,36 L
2,24 L
4,48 L
0,56 L
1,12 L
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