MOL VÀ TỶ KHỐI CỦA CHẤT KHÍ
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
thuy van nguyen
Used 8+ times
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32 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
I. CÁC CÂU HỎI VỀ MOL:
Số Avogadro kí hiệu là gì?
6,022. 10^23 kí hiệu là NA
6,022.10^22 kí hiệu là NA
6,022.10^23 kí hiệu là N
6,022.10^22 kí hiệu là N
2.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Số phân tử Al₂O₃ có trong 1 mol Al₂O₃ là bao nhiêu?
6,022.10^23
12,044.10^23
24,088.10^23
3.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
0,25 mol nguyên tử aluminium (Al) có chứa bao nhiêu nguyên tử aluminium (Al)?
6,022.10^23
1,5055.10^23
12,044.10^23
0,0255.10^23
4.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
Số mol tương đương với 1,5.10^23 phân tử CO₂ là bao nhiêu?
0,20 mol
0,25 mol
0,30 mol
0,35 mol
5.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
1,8.NA phân tử N₂ có số mol là bao nhiêu?
0,5 mol
0,9 mol
1,6 mol
1,8 mol
6.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Số nguyên tử iron (Fe) có trong 28 gam iron (Fe) là bao nhiêu? (Biết: Fe = 56)
2,10.10^23
2,51.10^23
3,01.10^23
3,51.10^23
7.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
Trong 24g MgO có bao nhiêu phân tử MgO? (Biết: Mg = 24; O = 16)
2,6132.10^23 phân tử
3,0.10^23 phân tử
4,2132.10^23 phân tử
3,6132.10^23 phân tử
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