Mol và tỷ khối chất khí
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium
Lê Hồng Hạnh
Used 2+ times
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30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính số mol nguyên tử trong 1,44 x 10²³ phân tử HCl.
0,24 mol
0,12 mol
0,36 mol
0,48 mol
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính khối lượng của 0,3 mol phân tử O₂.
9,6 g
8,0 g
6,4 g
7,2 g
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính số mol của 4,60 gam Na.
0,20 mol
0,10 mol
0,15 mol
0,25 mol
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khí CO₂ nặng hơn khí hydrogen bao nhiêu lần?
22 lần
44 lần
11 lần
33 lần
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính khối lượng (gam) của 7,44 lít khí SO₂ ở đktc.
14,8 g
16,0 g
12,8 g
19,2 g
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hỗn hợp X gồm 0,15 mol SO₂ và 0,2 mol CO₂. Tính khối lượng mol trung bình của hỗn hợp X.
48 g/mol
52,57 g/mol
44 g/mol
50 g/mol
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hỗn hợp khí X gồm 22 gam khí CO₂, 12,8 gam khí SO₂ và 15,4 gam khí N₂O. Tính khối lượng mol trung bình của hỗn hợp.
44 g/mol
46 g/mol
47,81 g/mol
50 g/mol
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