Sciences ST - Concentration
Quiz
•
Science
•
10th Grade
•
Practice Problem
•
Hard
Sebastien Guay
Used 50+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quels mots peut-on, dans l'ordre associer à jus de fraise, cristaux à saveur de fraise et eau?
Soluté - solvant - solution
Solution - soluté - solvant
Solvant - soluté - solution
Solution - solvant - soluté
2.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Parmi les techniques de laboratoire suivantes, lesquelles permettent d'augmenter la concentration d'une solution?
Ajouter du soluté
Ajouter du solvant
Vider la moitié de la solution
Faire bouillir la solution
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quelle unité de concentration est équivalente à un masse de soluté en grammes par 1 000 000 mL de solution?
% (m/V)
% (V/V)
g/L
ppm
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Une solution de 250 mL comporte 50g de soluté. Détermine sa concentration en g/L
0,2
20
50
200
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Ballon jaugé - compte goutte - plat - cuiller
Ballon jaugé - compte goutte - spatule - cuiller
Bécher - pipette - nacelle - spatule
Ballon jaugé - pipette - nacelle - spatule
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Que donne la conversion de 5 000 ppm en %(m/V)?
0,5
5
50
5 000 000
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
On crée une solution en incorporant 25 mL de vinaigre dans 325 mL d'eau. Quelle est la concentration de cette solution en % (V/V)?
7,14
7,69
71,4
76,9
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