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 6 mol of solute dissolved in a total volume of 3 dm³. Calculate the molar concentration in mol/dm³.
n = 6 mol · V = 3 dm³
2. A solution contains 20 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
n = 20 mol · V = 8 dm³
3. A solution contains 60 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
n = 60 mol · V = 8 dm³
4. A solution contains 5.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
n = 5.5 mol · V = 1 dm³
5. A solution contains 18 mol of solute dissolved in a total volume of 3 dm³. Calculate the molar concentration in mol/dm³.
n = 18 mol · V = 3 dm³
6. A solution contains 16 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
n = 16 mol · V = 8 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 37.5 mol of solute dissolved in a total volume of 5 dm³. Calculate the molar concentration in mol/dm³.
n = 37.5 mol · V = 5 dm³
9. A solution contains 10 mol of solute dissolved in a total volume of 10 dm³. Calculate the molar concentration in mol/dm³.
n = 10 mol · V = 10 dm³
10. A solution contains 28 mol of solute dissolved in a total volume of 4 dm³. Calculate the molar concentration in mol/dm³.
n = 28 mol · V = 4 dm³
11. A solution contains 45 mol of solute dissolved in a total volume of 9 dm³. Calculate the molar concentration in mol/dm³.
n = 45 mol · V = 9 dm³
12. A solution contains 18 mol of solute dissolved in a total volume of 9 dm³. Calculate the molar concentration in mol/dm³.
n = 18 mol · V = 9 dm³

12 questions · Seed 45 · 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 6 mol of solute dissolved in a total volume of 3 dm³. Calculate the molar concentration in mol/dm³.
2 mol/dm³
Concentration c = n ÷ V = 6 mol ÷ 3 dm³ = 2 mol/dm³.
2. A solution contains 20 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
2.5 mol/dm³
Concentration c = n ÷ V = 20 mol ÷ 8 dm³ = 2.5 mol/dm³.
3. A solution contains 60 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
7.5 mol/dm³
Concentration c = n ÷ V = 60 mol ÷ 8 dm³ = 7.5 mol/dm³.
4. A solution contains 5.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
5.5 mol/dm³
Concentration c = n ÷ V = 5.5 mol ÷ 1 dm³ = 5.5 mol/dm³.
5. A solution contains 18 mol of solute dissolved in a total volume of 3 dm³. Calculate the molar concentration in mol/dm³.
6 mol/dm³
Concentration c = n ÷ V = 18 mol ÷ 3 dm³ = 6 mol/dm³.
6. A solution contains 16 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
2 mol/dm³
Concentration c = n ÷ V = 16 mol ÷ 8 dm³ = 2 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 37.5 mol of solute dissolved in a total volume of 5 dm³. Calculate the molar concentration in mol/dm³.
7.5 mol/dm³
Concentration c = n ÷ V = 37.5 mol ÷ 5 dm³ = 7.5 mol/dm³.
9. A solution contains 10 mol of solute dissolved in a total volume of 10 dm³. Calculate the molar concentration in mol/dm³.
1 mol/dm³
Concentration c = n ÷ V = 10 mol ÷ 10 dm³ = 1 mol/dm³.
10. A solution contains 28 mol of solute dissolved in a total volume of 4 dm³. Calculate the molar concentration in mol/dm³.
7 mol/dm³
Concentration c = n ÷ V = 28 mol ÷ 4 dm³ = 7 mol/dm³.
11. A solution contains 45 mol of solute dissolved in a total volume of 9 dm³. Calculate the molar concentration in mol/dm³.
5 mol/dm³
Concentration c = n ÷ V = 45 mol ÷ 9 dm³ = 5 mol/dm³.
12. A solution contains 18 mol of solute dissolved in a total volume of 9 dm³. Calculate the molar concentration in mol/dm³.
2 mol/dm³
Concentration c = n ÷ V = 18 mol ÷ 9 dm³ = 2 mol/dm³.

12 questions · Seed 45 · 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 6 mol of solute dissolved in a total volume of 3 dm³. Calculate the molar concentration in mol/dm³.
n = 6 mol · V = 3 dm³
2. A solution contains 20 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
n = 20 mol · V = 8 dm³
3. A solution contains 60 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
n = 60 mol · V = 8 dm³
4. A solution contains 5.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
n = 5.5 mol · V = 1 dm³
5. A solution contains 18 mol of solute dissolved in a total volume of 3 dm³. Calculate the molar concentration in mol/dm³.
n = 18 mol · V = 3 dm³
6. A solution contains 16 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
n = 16 mol · V = 8 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 37.5 mol of solute dissolved in a total volume of 5 dm³. Calculate the molar concentration in mol/dm³.
n = 37.5 mol · V = 5 dm³
9. A solution contains 10 mol of solute dissolved in a total volume of 10 dm³. Calculate the molar concentration in mol/dm³.
n = 10 mol · V = 10 dm³
10. A solution contains 28 mol of solute dissolved in a total volume of 4 dm³. Calculate the molar concentration in mol/dm³.
n = 28 mol · V = 4 dm³
11. A solution contains 45 mol of solute dissolved in a total volume of 9 dm³. Calculate the molar concentration in mol/dm³.
n = 45 mol · V = 9 dm³
12. A solution contains 18 mol of solute dissolved in a total volume of 9 dm³. Calculate the molar concentration in mol/dm³.
n = 18 mol · V = 9 dm³

12 questions · Seed 45 · 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 6 mol of solute dissolved in a total volume of 3 dm³. Calculate the molar concentration in mol/dm³.
2 mol/dm³
Concentration c = n ÷ V = 6 mol ÷ 3 dm³ = 2 mol/dm³.
2. A solution contains 20 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
2.5 mol/dm³
Concentration c = n ÷ V = 20 mol ÷ 8 dm³ = 2.5 mol/dm³.
3. A solution contains 60 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
7.5 mol/dm³
Concentration c = n ÷ V = 60 mol ÷ 8 dm³ = 7.5 mol/dm³.
4. A solution contains 5.5 mol of solute dissolved in a total volume of 1 dm³. Calculate the molar concentration in mol/dm³.
5.5 mol/dm³
Concentration c = n ÷ V = 5.5 mol ÷ 1 dm³ = 5.5 mol/dm³.
5. A solution contains 18 mol of solute dissolved in a total volume of 3 dm³. Calculate the molar concentration in mol/dm³.
6 mol/dm³
Concentration c = n ÷ V = 18 mol ÷ 3 dm³ = 6 mol/dm³.
6. A solution contains 16 mol of solute dissolved in a total volume of 8 dm³. Calculate the molar concentration in mol/dm³.
2 mol/dm³
Concentration c = n ÷ V = 16 mol ÷ 8 dm³ = 2 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 37.5 mol of solute dissolved in a total volume of 5 dm³. Calculate the molar concentration in mol/dm³.
7.5 mol/dm³
Concentration c = n ÷ V = 37.5 mol ÷ 5 dm³ = 7.5 mol/dm³.
9. A solution contains 10 mol of solute dissolved in a total volume of 10 dm³. Calculate the molar concentration in mol/dm³.
1 mol/dm³
Concentration c = n ÷ V = 10 mol ÷ 10 dm³ = 1 mol/dm³.
10. A solution contains 28 mol of solute dissolved in a total volume of 4 dm³. Calculate the molar concentration in mol/dm³.
7 mol/dm³
Concentration c = n ÷ V = 28 mol ÷ 4 dm³ = 7 mol/dm³.
11. A solution contains 45 mol of solute dissolved in a total volume of 9 dm³. Calculate the molar concentration in mol/dm³.
5 mol/dm³
Concentration c = n ÷ V = 45 mol ÷ 9 dm³ = 5 mol/dm³.
12. A solution contains 18 mol of solute dissolved in a total volume of 9 dm³. Calculate the molar concentration in mol/dm³.
2 mol/dm³
Concentration c = n ÷ V = 18 mol ÷ 9 dm³ = 2 mol/dm³.

12 questions · Seed 45 · Age guidance, not curriculum certification