Formes liquides : exercices

Formes liquides : exercices

5th Grade

22 Qs

quiz-placeholder

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Formes liquides : exercices

Formes liquides : exercices

Assessment

Quiz

Other

5th Grade

Practice Problem

Hard

Created by

vinciane scoyer

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22 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quelle est la concentration massique (g/ml) d'une solution contenant 10 g de NaCl dans 200 mL d'eau ?

0,02 g/mL

0,05 g/mL

0,08 g/mL

0,1 g/mL

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quelle est la concentration massique (g/L) d'une solution contenant 15 g de sulfate de magnésium dans 200 mL ?

150 g/L

30 g/L

60 g/L

75 g/L

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quelle est la concentration massique (g/ml) d'une solution contenant 25 g de sulfate de cuivre (CuSO₄) dans 500 mL d'eau ?

0,08 g/mL

0,05 g/mL

0,1 g/mL

0,02 g/mL

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quelle est la concentration en pourcentage (m/V) d'une solution contenant 15 g de KCl dans 300 mL ?

5 %

7 %

10 %

2 %

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Si une crème contient 4 g de substance active dans 100 g de crème, quelle est la concentration en pourcentage massique (% m/m) de la substance active ?

8 %

4 %

2 %

6 %

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quelle masse de glucose faut-il dissoudre pour préparer 1 L d'une solution à 5 % ?

50 g

25 g

100 g

75 g

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quelle est la concentration en pourcentage (m/m) d'une pommade contenant 12 g d'acide salicylique dans 150 g de pommade ?

15 %

5 %

10 %

8 %

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