
Hóa tính toán
Authored by Minh Pham
Chemistry
8th Grade
Used 2+ times

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14 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
13,44 lít khí oxi (đktc) là bao nhiêu mol?
13,44 mol
0,6 mol
0,5 mol
0,4 mol
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
183,75g kali clorat là bao nhiêu mol? (K =39, Cl = 35,5 và O = 16)
1 mol
2 mol
1,5 mol
1,25 mol
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
9,3 g Photpho là bao nhiêu mol? (P = 31)
0,3 mol
3 mol
9,3 mol
Con số khác
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tính được VO2 cần dùng là 11,2 lít. Hỏi cần sử dụng bao nhiêu lít không khí?
11,2 l
28 l
56 l
112 l
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
20,4 g nhôm oxit là bao nhiêu mol? (Al = 27, O = 16)
0,2 mol
0,1 mol
0,3 mol
Con số khác
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Khối lượng phân tử oxit sắt từ là bao nhiêu? (Fe = 56, O = 16)
230
232
160
Con số khác
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
0,25 mol oxit sắt từ nặng bao nhiêu gam? (Fe = 56, O = 16)
40 g
58 g
56 g
Con số khác
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