
Chapitre 9 : La mole
Authored by Elodie Piquenet
Chemistry
10th Grade
Used 6+ times

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Combien il y a-t-il d'entités dans une mole ?
6,02 x 10-23 entités
6,02 x 1023 entités
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Combien vaut la constante d'Avogadro ?
6,02 x 1023 mol
6,02 x 1023 mol-1
6,02 x 1023 entités
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sachant qu'une mole d'or pèse 197 grammes, combien il y a-t-il de mole dans 1970 grammes d'or ?
1
10
0,1
0, 5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel est le symbole de l'unité de la quantité de matière n ?
m
mol
mol-1
mL
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un échantillon contient 10 moles de soufre. Combien d'atomes sont présents dans cet échantillon ?
10
6 x 1023
6 x 1022
6 x 1024
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On donne la masse de chaque atome :
m(H) = 1,67 x 10-24 g
m(C) = 2,00 x 10-23 g
m(O) = 2,67 x 10-23 g
Calculer la masse d'une molécule de glucose C6H12O6.
3,0 x 10-22 g
4,8 x 10-23 g
4,8 x 10-22 g
24 g
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On donne les masses molaires des atomes :
M(H) = 1,0 g.mol-1
M(C) = 12,0 g.mol-1
M(O) = 16,0 g.mol-1
Calculer la masse molaire M de C3H6O.
29 g.mol-1
111 g.mol-1
58 g.mol-1
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