
Flashcard : Formules utiles en biotechnologies
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
Florence Rivenet
FREE Resource
Student preview

17 questions
Show all answers
1.
FLASHCARD QUESTION
Front
Back
2.
FLASHCARD QUESTION
Front
Quelle est la formule correcte pour la concentration en quantité de matière ?
Back
3.
FLASHCARD QUESTION
Front
La concentration en mol·L⁻¹ d’une solution contenant 0,25 mol dans 500 mL est :
Back
0,5 mol·L⁻¹
4.
FLASHCARD QUESTION
Front
Quelle est la formule correcte pour la concentration en masse ?
Back
5.
FLASHCARD QUESTION
Front
Quelle est la formule correcte pour calculer une masse à peser si on connaît la concentration en masse de substance et le volume de solution à préparer ?
Back
6.
FLASHCARD QUESTION
Front
Pour préparer 250 mL d’une solution à 2 g·L⁻¹, il faut peser :
Back
0,5 g
7.
FLASHCARD QUESTION
Front
On souhaite obtenir une solution de concentration massique 4 g·L⁻¹ dans 500 mL. On doit peser :
Back
2 g
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