Konsep Mol
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
CHAMALIA RESWARI
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6 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
HItung massa 0,1 mol batu kapur (CaCO3) jika diketahui Ar Ca=40, Ar C=12, dan Ar O=16
5 gram
10 gram
15 gram
20 gram
2.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Pembuatan asam nitrat dalam industri pada tahap awal melibatkan reaksi oksidasi amonia yang menghasilkan gas nitrogen monoksida dan uap air, menurut reaksi :
4 NH3 + 5 O2 —> 4 NO + 6 H2O
Jika gas amonia yang bereaksi sebanyak 11,2 L pada saat STP, maka gas nitrogen monoksida yang dihasilkan sebanyak … gram (Ar N = 14, O = 16, H = 1)
15
20
30
45
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Sebanyak 2,8 gram besi direaksikan dengan asam sulfat menurut reaksi :
2 Fe + 3 H2SO4 —> Fe2(SO4)3 + 3 H2
Pada akhir reaksi, gas H2 yang terbentuk diukur pada keadaan standar adalah … (Ar Fe = 56)
0,56L
0,6L
1,12L
1,68L
4.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Diantara molekul-molekul berikut yang memiliki jumlah molekul sama dengan jumlah molekul dalam 2,8 gram CO adalah … (Ar C = 12, O = 16, N = 14, H = 1, Cl = 35,5 dan L = 6,02 x 1023)
1,4 gram N2
4,0 gram H2
6,4 gram O2
7,1 gram Cl2
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Jumlah mol air yang mengandung 2,408 x 1023 adalah … (L = 6,02 x 1023)
0,2 mol
0,4 mol
0,6 mol
0,8 mol
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Jumlah mol air yang mengandung 2,408 x 1023 adalah … (L = 6,02 x 1023)
0,2 mol
0,4 mol
0,6 mol
0,8 mol
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