Pratique Concentration et Dilution
Quiz
•
Science
•
9th - 10th Grade
•
Practice Problem
•
Hard
Alec Courchesne
Used 12+ times
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15 questions
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1.
MATH RESPONSE QUESTION
3 mins • 1 pt
Transforme 25 kg en g.
Mathematical Equivalence
ON
Answer explanation
Il y a 1000 g pour 1 kg.
1000 g = 1 kg
x = 25 kg
2.
MATH RESPONSE QUESTION
3 mins • 1 pt
Transforme 56 mg en gramme.
Mathematical Equivalence
ON
3.
MATH RESPONSE QUESTION
3 mins • 1 pt
Transforme 150 L en ml.
Mathematical Equivalence
OFF
4.
MATH RESPONSE QUESTION
3 mins • 1 pt
Transforme 400 ml en L.
Mathematical Equivalence
OFF
5.
REORDER QUESTION
10 mins • 1 pt
Ordonne les concentrations suivantes de la plus faible à la plus grande.
13 g/L
2 %
14 %
Answer explanation
Il faut utiliser la même unité de mesure pour comparer les concentrations. Nous pourrions travailler en %. En changeant 15 000 ppm --> 1,5 % et 13 g/L --> 1,3 %
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Quelle concentration obtient-on en mélangeant 27 g d'un soluté dans 800 ml ?
27 g/L
33,75 g/L
0,03 %
21,6 g/L
7.
MATH RESPONSE QUESTION
3 mins • 1 pt
Quelle masse de soluté (en g) retrouve-t-on dans 375 ml d'une solution concentrée à 9000 ppm ?
Mathematical Equivalence
ON
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