Combien de molécules sont présentes dans une demie-mole de dioxygène?
Chimie 051 - Quiz Rappel

Quiz
•
Chemistry
•
11th Grade
•
Easy
Jean-Francois Latour
Used 12+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
56,39 g/mol
88,99 g/mol
213,01 g/mol
Je n'ai pas assez d'information pour la déterminer
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Indique le nombre de moles que représente 111 g de dioxygène
6,94 mol
0,288 mol
0,144 mol
3,47 mol
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Combien de grammes représentent 0,250 mol d'hydroxyde de sodium (NaOH)
160 g
0,00625 g
10,0 g
40,0 g
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
33 g/L
50 g/L
33 mol/L
50 mol/L
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Quelle est la concentration de 28,0 g de chlorure de potassium KCl dans 0,250 L de solution?
.
(masse atomique du potassium est de 39,10 g/mol)
112 g/L
7,00 g/L
10,7 mol/L
1,5 mol/L
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
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