quantité de matière
Quiz
•
Chemistry
•
10th - 12th Grade
•
Practice Problem
•
Medium
Anthony Rodot
Used 92+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule la quantité de matière dans un clou en fer de 2,5 g.
M (Fe) = 56 g.mol-1
4,5.10-2 mol
1,4.102 mol
22,4 mol
5,4.10-2 mol
1,3.10-3 mol
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule la quantité de matière dans un morceau de cuivre de 58 g.
M (Cu) = 63,5 g.mol-1
9,1.10-1 mol
1,1 mol
22,4.10-1 mol mol
5,4.10-2 mol
1,3.10-3 mol
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule la quantité de matière dans un morceau de zinc de 293 g.
M (Zn) = 65,4 g.mol-1
4,5 mol
0,12 mol
1,2.10-1 mol mol
8,7.10-2 mol
1,3.10-3 mol
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule la quantité de matière d'eau dans 10 g.
M(H) = 1,0 g.mol-1 ; M(O) = 16 g.mol-1
5,6.10-1 mol
1,5.10-3 mol
1,5.10-4 mol
3,5.10-2 mol
3,5.102 mol
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule la quantité de matière de sucre (C12H22O11) dans un morceau de 5,5 g.
M(C) = 12 g.mol-1 ; M(H) = 1,0 g.mol-1 ; M(O) = 16 g.mol-1
1,6.10-2 mol
1,6.10-1 mol
6,2.101 mol
2,71.10-2 mol
3,4.10-3 mol
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule la quantité de matière de caféine (C8H10N4O2) comprise dans 0,56 g.
M(C) = 12 g.mol-1 ; M(H) = 1,0 g.mol-1 ; M(O) = 16 g.mol-1 ; M(N) = 14 g.mol-1
2,9.10-3 mol
1,5.10-3 mol
1,5.10-4 mol
3,5.10-2 mol
3,5.102 mol
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule la masse de 8,79.10-4 mol de caféine (C8H10N4O2)
M(C) = 12 g.mol-1 ; M(H) = 1,0 g.mol-1 ; M(O) = 16 g.mol-1 ; M(N) = 14 g.mol-1
171 mg
190 mg
2,21.10-3 g
171 mol
3,5.102 g
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