quantité de matière

quantité de matière

10th - 12th Grade

16 Qs

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quantité de matière

quantité de matière

Assessment

Quiz

Chemistry

10th - 12th Grade

Practice Problem

Medium

Created by

Anthony Rodot

Used 92+ times

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16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcule la quantité de matière dans un clou en fer de 2,5 g.

M (Fe) = 56 g.mol-1

4,5.10-2 mol

1,4.102 mol

22,4 mol

5,4.10-2 mol

1,3.10-3 mol

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcule la quantité de matière dans un morceau de cuivre de 58 g.

M (Cu) = 63,5 g.mol-1

9,1.10-1 mol

1,1 mol

22,4.10-1 mol mol

5,4.10-2 mol

1,3.10-3 mol

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcule la quantité de matière dans un morceau de zinc de 293 g.

M (Zn) = 65,4 g.mol-1

4,5 mol

0,12 mol

1,2.10-1 mol mol

8,7.10-2 mol

1,3.10-3 mol

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcule la quantité de matière d'eau dans 10 g.

M(H) = 1,0 g.mol-1 ; M(O) = 16 g.mol-1

5,6.10-1 mol

1,5.10-3 mol

1,5.10-4 mol

3,5.10-2 mol

3,5.102 mol

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcule la quantité de matière de sucre (C12H22O11) dans un morceau de 5,5 g.

M(C) = 12 g.mol-1 ; M(H) = 1,0 g.mol-1 ; M(O) = 16 g.mol-1

1,6.10-2 mol

1,6.10-1 mol

6,2.101 mol

2,71.10-2 mol

3,4.10-3 mol

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcule la quantité de matière de caféine (C8H10N4O2) comprise dans 0,56 g.

M(C) = 12 g.mol-1 ; M(H) = 1,0 g.mol-1 ; M(O) = 16 g.mol-1 ; M(N) = 14 g.mol-1

2,9.10-3 mol

1,5.10-3 mol

1,5.10-4 mol

3,5.10-2 mol

3,5.102 mol

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcule la masse de 8,79.10-4 mol de caféine (C8H10N4O2)

M(C) = 12 g.mol-1 ; M(H) = 1,0 g.mol-1 ; M(O) = 16 g.mol-1 ; M(N) = 14 g.mol-1

171 mg

190 mg

2,21.10-3 g

171 mol

3,5.102 g

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