Quantité de matière, masse molaire et concentration molaire
Quiz
•
Chemistry
•
10th - 11th Grade
•
Practice Problem
•
Medium
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
L'unité de quantité de matière est notée :
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La relation liant la masse molaire M, la quantité de matière n et la masse m de l'échantillon est :
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La masse molaire M a pour unité :
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
L'éther a pour formule brute C2H6O. Le calcul de sa masse molaire est :
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
La concentration molaire C, la quantité de matière n et le volume V sont liés par la relation :
n = C / V
n = C x V
C = n x V
C = n / V
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
L'unité de la concentration molaire est :
g/mol
gramme
mol
mol/L
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On possède 2 L une solution sucrée de concentration molaire 1,4 mol/L.
Quelle quantité de matière de sucre possède cette solution ?
2,8 mol
2,8 g
0,7 mol
0,7 g
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On dissout 4 mol de sel dans 2 L d'eau. Quelle est la concentration molaire en sel de la solution ?
2 mol/L
0,5 mol/L
8 mol/L
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