Stokiometri - B

Quiz
•
Chemistry
•
10th Grade
•
Hard
Syamsuddin Hiymu
FREE Resource
35 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu campuran gas terdiri atas 2 mol N2O3 dan 4 mol NO. Jika campuran ini diuraikan dengan sempurna menjadi gas-gas nitrogen dan oksigen, maka perbandingan volume gas nitrogen dan oksigen adalah ....
2 : 3
3 : 4
4 : 5
5 : 6
6 : 7
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika seandainya berat atom karbon diberikan nilai 100 sma dan bukan 12 sma, maka berat molekul air menjadi ....
180
150
130
118
106
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jumlah mol belerang di dalam 24 gram pirit, FeS2, (Ar Fe = 56 dan S = 32) adalah ....
0,02
0,04
0,10
0,20
0,40
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Volume hidrogen yang bergabung dengan 24 Iiter oksigen untuk menghasilkan air adalah ....
24,0 liter
22,4 Iiter
48,0 liter
12,0 liter
44,8 liter
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Di antara senyawa berikut yang mempunyai jumlah atom paling banyak pada keadaan STP adalah ....
1,2 liter CH4
2,8 liter NH3
3,4 liter CO2
4,5 liter SO2
5,6 liter C2H2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika pupuk urea CO(NH2)2 mengandung nitrogen 42% di mana Mr urea = 60 dan Ar N = 14, maka kemurnian pupuk urea tersebut adalah ….
50%
60%
70%
90%
80%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dalam 50 gram pupuk urea [CO(NH2)2] terdapat 18,64 gram nitrogen. Kemurnian pupuk tersebut adalah .... (diketahui Ar N = 14 ; C = 12 ; O = 16 ; H = 1)
42%
75%
80%
90%
100%
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