ScienceAges 16-18

Molar concentration (c = n ÷ V)

Use c = n ÷ V to calculate the molar concentration of a solution in mol/dm³. Review suitability for your learners before teaching.

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Worksheet StudioPractice pack · Ages 16-18

Molar concentration (c = n ÷ V)

Take your time. Show your thinking.

1. A solution contains 7.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
n = 7.5 mol · V = 1 dm³
2. A solution contains 4 mol of solute dissolved in a total volume of 2 dm³. Calculate the molar concentration in mol/dm³.
n = 4 mol · V = 2 dm³
3. A solution contains 42 mol of solute dissolved in a total volume of 6 dm³. Calculate the molar concentration in mol/dm³.
n = 42 mol · V = 6 dm³
4. A solution contains 3.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
n = 3.5 mol · V = 1 dm³
5. A solution contains 12 mol of solute dissolved in a total volume of 4 dm³. Calculate the molar concentration in mol/dm³.
n = 12 mol · V = 4 dm³
6. A solution contains 56 mol of solute dissolved in a total volume of 7 dm³. Calculate the molar concentration in mol/dm³.
n = 56 mol · V = 7 dm³
7. A solution contains 4.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
n = 4.5 mol · V = 1 dm³
8. A solution contains 21 mol of solute dissolved in a total volume of 7 dm³. Calculate the molar concentration in mol/dm³.
n = 21 mol · V = 7 dm³
9. A solution contains 32 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
n = 32 mol · V = 8 dm³
10. A solution contains 28 mol of solute dissolved in a total volume of 7 dm³. Calculate the molar concentration in mol/dm³.
n = 28 mol · V = 7 dm³
11. A solution contains 30 mol of solute dissolved in a total volume of 5 dm³. Calculate the molar concentration in mol/dm³.
n = 30 mol · V = 5 dm³
12. A solution contains 7.5 mol of solute dissolved in a total volume of 3 dm³. Calculate the molar concentration in mol/dm³.
n = 7.5 mol · V = 3 dm³

12 questions · Seed 42 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 16-18

Molar concentration (c = n ÷ V)

Answers and reasoning. Review before teaching.

1. A solution contains 7.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
7.5 mol/dm³
Concentration c = n ÷ V = 7.5 mol ÷ 1 dm³ = 7.5 mol/dm³.
2. A solution contains 4 mol of solute dissolved in a total volume of 2 dm³. Calculate the molar concentration in mol/dm³.
2 mol/dm³
Concentration c = n ÷ V = 4 mol ÷ 2 dm³ = 2 mol/dm³.
3. A solution contains 42 mol of solute dissolved in a total volume of 6 dm³. Calculate the molar concentration in mol/dm³.
7 mol/dm³
Concentration c = n ÷ V = 42 mol ÷ 6 dm³ = 7 mol/dm³.
4. A solution contains 3.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
3.5 mol/dm³
Concentration c = n ÷ V = 3.5 mol ÷ 1 dm³ = 3.5 mol/dm³.
5. A solution contains 12 mol of solute dissolved in a total volume of 4 dm³. Calculate the molar concentration in mol/dm³.
3 mol/dm³
Concentration c = n ÷ V = 12 mol ÷ 4 dm³ = 3 mol/dm³.
6. A solution contains 56 mol of solute dissolved in a total volume of 7 dm³. Calculate the molar concentration in mol/dm³.
8 mol/dm³
Concentration c = n ÷ V = 56 mol ÷ 7 dm³ = 8 mol/dm³.
7. A solution contains 4.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
4.5 mol/dm³
Concentration c = n ÷ V = 4.5 mol ÷ 1 dm³ = 4.5 mol/dm³.
8. A solution contains 21 mol of solute dissolved in a total volume of 7 dm³. Calculate the molar concentration in mol/dm³.
3 mol/dm³
Concentration c = n ÷ V = 21 mol ÷ 7 dm³ = 3 mol/dm³.
9. A solution contains 32 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
4 mol/dm³
Concentration c = n ÷ V = 32 mol ÷ 8 dm³ = 4 mol/dm³.
10. A solution contains 28 mol of solute dissolved in a total volume of 7 dm³. Calculate the molar concentration in mol/dm³.
4 mol/dm³
Concentration c = n ÷ V = 28 mol ÷ 7 dm³ = 4 mol/dm³.
11. A solution contains 30 mol of solute dissolved in a total volume of 5 dm³. Calculate the molar concentration in mol/dm³.
6 mol/dm³
Concentration c = n ÷ V = 30 mol ÷ 5 dm³ = 6 mol/dm³.
12. A solution contains 7.5 mol of solute dissolved in a total volume of 3 dm³. Calculate the molar concentration in mol/dm³.
2.5 mol/dm³
Concentration c = n ÷ V = 7.5 mol ÷ 3 dm³ = 2.5 mol/dm³.

12 questions · Seed 42 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 16-18

Molar concentration (c = n ÷ V)

Take your time. Show your thinking.

1. A solution contains 7.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
n = 7.5 mol · V = 1 dm³
2. A solution contains 4 mol of solute dissolved in a total volume of 2 dm³. Calculate the molar concentration in mol/dm³.
n = 4 mol · V = 2 dm³
3. A solution contains 42 mol of solute dissolved in a total volume of 6 dm³. Calculate the molar concentration in mol/dm³.
n = 42 mol · V = 6 dm³
4. A solution contains 3.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
n = 3.5 mol · V = 1 dm³
5. A solution contains 12 mol of solute dissolved in a total volume of 4 dm³. Calculate the molar concentration in mol/dm³.
n = 12 mol · V = 4 dm³
6. A solution contains 56 mol of solute dissolved in a total volume of 7 dm³. Calculate the molar concentration in mol/dm³.
n = 56 mol · V = 7 dm³
7. A solution contains 4.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
n = 4.5 mol · V = 1 dm³
8. A solution contains 21 mol of solute dissolved in a total volume of 7 dm³. Calculate the molar concentration in mol/dm³.
n = 21 mol · V = 7 dm³
9. A solution contains 32 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
n = 32 mol · V = 8 dm³
10. A solution contains 28 mol of solute dissolved in a total volume of 7 dm³. Calculate the molar concentration in mol/dm³.
n = 28 mol · V = 7 dm³
11. A solution contains 30 mol of solute dissolved in a total volume of 5 dm³. Calculate the molar concentration in mol/dm³.
n = 30 mol · V = 5 dm³
12. A solution contains 7.5 mol of solute dissolved in a total volume of 3 dm³. Calculate the molar concentration in mol/dm³.
n = 7.5 mol · V = 3 dm³

12 questions · Seed 42 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 16-18

Molar concentration (c = n ÷ V)

Answers and reasoning. Review before teaching.

1. A solution contains 7.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
7.5 mol/dm³
Concentration c = n ÷ V = 7.5 mol ÷ 1 dm³ = 7.5 mol/dm³.
2. A solution contains 4 mol of solute dissolved in a total volume of 2 dm³. Calculate the molar concentration in mol/dm³.
2 mol/dm³
Concentration c = n ÷ V = 4 mol ÷ 2 dm³ = 2 mol/dm³.
3. A solution contains 42 mol of solute dissolved in a total volume of 6 dm³. Calculate the molar concentration in mol/dm³.
7 mol/dm³
Concentration c = n ÷ V = 42 mol ÷ 6 dm³ = 7 mol/dm³.
4. A solution contains 3.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
3.5 mol/dm³
Concentration c = n ÷ V = 3.5 mol ÷ 1 dm³ = 3.5 mol/dm³.
5. A solution contains 12 mol of solute dissolved in a total volume of 4 dm³. Calculate the molar concentration in mol/dm³.
3 mol/dm³
Concentration c = n ÷ V = 12 mol ÷ 4 dm³ = 3 mol/dm³.
6. A solution contains 56 mol of solute dissolved in a total volume of 7 dm³. Calculate the molar concentration in mol/dm³.
8 mol/dm³
Concentration c = n ÷ V = 56 mol ÷ 7 dm³ = 8 mol/dm³.
7. A solution contains 4.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
4.5 mol/dm³
Concentration c = n ÷ V = 4.5 mol ÷ 1 dm³ = 4.5 mol/dm³.
8. A solution contains 21 mol of solute dissolved in a total volume of 7 dm³. Calculate the molar concentration in mol/dm³.
3 mol/dm³
Concentration c = n ÷ V = 21 mol ÷ 7 dm³ = 3 mol/dm³.
9. A solution contains 32 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
4 mol/dm³
Concentration c = n ÷ V = 32 mol ÷ 8 dm³ = 4 mol/dm³.
10. A solution contains 28 mol of solute dissolved in a total volume of 7 dm³. Calculate the molar concentration in mol/dm³.
4 mol/dm³
Concentration c = n ÷ V = 28 mol ÷ 7 dm³ = 4 mol/dm³.
11. A solution contains 30 mol of solute dissolved in a total volume of 5 dm³. Calculate the molar concentration in mol/dm³.
6 mol/dm³
Concentration c = n ÷ V = 30 mol ÷ 5 dm³ = 6 mol/dm³.
12. A solution contains 7.5 mol of solute dissolved in a total volume of 3 dm³. Calculate the molar concentration in mol/dm³.
2.5 mol/dm³
Concentration c = n ÷ V = 7.5 mol ÷ 3 dm³ = 2.5 mol/dm³.

12 questions · Seed 42 · Age guidance, not curriculum certification