La mole Spé 1ere 10 min
Quiz
•
Chemistry
•
1st Grade
•
Hard
Françoise TABARY
Used 23+ times
FREE Resource
14 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
20 sec • 5 pts
Soit Na la constante d'Avogadro. Le nombre d'entités chimiques N et la quantité de matière n sont liés par la relation:
N = n x Na
n = N x Na
Na = n x N
n = N / Na
2.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Une quantité de matière s'exprime en:
kg
g
mol
mol-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Quelle quantité de matière correspond à 2,4 x 1024 entités chimiques ?
1 mol
4 mol
40 mol
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Quelle quantité est la plus proche de mille milliards de mille sabords ?
10 mol
7 mol
5.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
La masse molaire moléculaire du dioxyde de carbone CO2 est égale à
2 × M (C)+ 2 M (O)
M (C) + 2 M (O)
M (C) + M (O)
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Sachant que le volume molaire d’un gaz à 20 ° C et 1013 hPa est Vm = 24,0 L. mol–1,
le volume occupé par 2 mol de dioxygène O2 est :
V = 48,0 L
V = 12,0 L
V = 24,0 L
7.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
La quantité de matière n, la masse m et la masse molaire M sont liées par :
n = m . M
n = m/M
n = M/m
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