Révision solution et mole
Quiz
•
Physics, Chemistry
•
1st - 10th Grade
•
Practice Problem
•
Hard
cyril MASSON
Used 51+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Combien d'entités y'a-t-il dans une mole ?
10
100
6 x 1023
105
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la valeur du nombre d'Avogadro ?
1,7x1024
10-10
6x1023
10-15
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est le symbole de l'unité de la mole ?
m
mol
mol-1
ml
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un échantillon contient 10 moles de soufre. Combien d'atomes sont présents dans cet échantillon ?
10
6x1023
6x1022
6x1024
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La concentration en masse se calcule :
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
On souhaite faire une solution de volume V = 100 mL, de concentration en masse Cm = 15 g.L-1. Quelle masse faut-il peser ?
15 g
1,5 g
150 g
6,7 g
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Un atome de carbone pèse 2x10-23 g. Quelle est la masse d'une mole de carbone ?
2 g
10 g
12 g
3 g
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