Lesson 4.3.2.5

4.3.2.5 Concentration of solutions Quiz: AQA Chemistry, Unit 3

20 questions

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Lesson 4.3.2.5, Concentration of solutions: 20 multiple choice questions for the AQA GCSE Chemistry (8462), Unit 3: Quantitative chemistry, written with Revision Ninja.

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The 20 questions

  1. What standard unit is used for solution concentration in mass per volume?

    • Grams per cubic centimetre
    • Milligrams per litre
    • Moles per cubic decimetre
    • Grams per cubic decimetre
  2. A solution has concentration 20 g/dm3 and volume 0.5 dm3. What is the mass of solute?

    • 40 g
    • 20 g
    • 10 g
    • 2.5 g
  3. A solution has concentration 15 g/dm3 and volume 250 cm3. What is the mass of solute?

    • 37.5 g
    • 15 g
    • 3.75 g
    • 0.375 g
  4. 8 g of solute is dissolved to make 400 cm3 of solution. What is the concentration?

    • 20 g/dm3
    • 200 g/dm3
    • 3.2 g/dm3
    • 0.05 g/dm3
  5. A solution contains 5 g of salt in 100 cm3. What is its concentration in g/dm3?

    • 0.5 g/dm3
    • 500 g/dm3
    • 50 g/dm3
    • 5 g/dm3
  6. How is the mass of solute calculated from concentration and volume?

    • Concentration times volume
    • Volume divided by concentration
    • Concentration divided by volume
    • Concentration plus volume
  7. If solution volume doubles at constant concentration, what happens to solute mass?

    • It quadruples
    • It stays the same
    • It doubles
    • It halves
  8. If solute mass doubles at constant volume, what happens to concentration?

    • It doubles
    • It quadruples
    • It halves
    • It stays the same
  9. A 40 g/dm3 solution has volume 500 cm3. What mass of solute does it contain?

    • 10 g
    • 80 g
    • 40 g
    • 20 g
  10. What mass of NaOH is in 2 dm3 of a 12 g/dm3 solution?

    • 12 g
    • 6 g
    • 48 g
    • 24 g
  11. A 250 cm3 solution contains 12.5 g of solute. What is its concentration?

    • 25 g/dm3
    • 50 g/dm3
    • 5 g/dm3
    • 125 g/dm3
  12. Solution A is 10 g/dm3 in 1 dm3, and solution B is 10 g/dm3 in 2 dm3. Which contains more solute?

    • Solution A
    • They are equal
    • Cannot be determined
    • Solution B
  13. What unit of volume is typically used in solution concentration?

    • g
    • cm3
    • dm3
    • m3
  14. 6 g of crystals are dissolved to make 300 cm3 of solution. What is the concentration?

    • 20 g/dm3
    • 200 g/dm3
    • 2 g/dm3
    • 18 g/dm3
  15. A solution has a concentration of 15 g/dm3. What mass of solute is in 0.4 dm3 of this solution?

    • 0.027 g
    • 15.4 g
    • 6 g
    • 37.5 g
  16. Glucose solution is 50 g/dm3. What mass of glucose is needed for 750 cm3?

    • 50 g
    • 37.5 g
    • 75 g
    • 15 g
  17. A 15 g/dm3 solution is diluted so its volume doubles. What is the new concentration?

    • 7.5 g/dm3
    • 30 g/dm3
    • 15 g/dm3
    • 3.75 g/dm3
  18. A solution contains 0.5 g of solute per cm3. What is its concentration in g/dm3?

    • 5 g/dm3
    • 0.5 g/dm3
    • 50 g/dm3
    • 500 g/dm3
  19. 0.8 g of solute is dissolved in 20 cm3 of solution. What is the concentration in g/dm3?

    • 40 g/dm3
    • 4 g/dm3
    • 400 g/dm3
    • 16 g/dm3
  20. Which action increases the concentration of an aqueous solution?

    • Cooling solution
    • Adding solvent
    • Evaporating solvent
    • Stirring faster

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