Lesson 5.2.2

5.2.2 Reacting gas volumes and solution concentrations Quiz: Pearson Edexcel Chemistry, Unit 5

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

In partnership with Revision Ninja

Lesson 5.2.2, Reacting gas volumes and solution concentrations: 20 multiple choice questions for the Pearson Edexcel Chemistry (9CH0), Unit 5: Formulae, Equations and Amounts of Substance, written with Revision Ninja.

Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.

Host this setFree Play

The 20 questions

  1. What is the approximate molar volume of a gas at room temperature and pressure?

    • 24 dm3 mol-1
    • 1.00 dm3 mol-1
    • 22.4 dm3 mol-1
    • 6.02 dm3 mol-1

  2. What volume does 0.5 mol of carbon dioxide occupy at room temperature and pressure?

    • 24 dm3
    • 48 dm3
    • 6 dm3
    • 12 dm3

  3. What volume of carbon dioxide forms when 10 g of calcium carbonate reacts fully with acid? (Molar volume 24 dm3 mol-1)

    • 1.0 dm3
    • 4.4 dm3
    • 2.4 dm3
    • 24 dm3

  4. What is the concentration of a solution made by dissolving 0.25 mol of solute in 500 cm3?

    • 0.05 mol dm-3
    • 0.50 mol dm-3
    • 2.0 mol dm-3
    • 0.125 mol dm-3

  5. How many dm3 are in 350 cm3?

    • 35.0 dm3
    • 0.0350 dm3
    • 3.50 dm3
    • 0.350 dm3

  6. What is the concentration in g dm-3 of a 0.5 mol dm-3 sodium chloride solution? (NaCl = 58.5)

    • 117 g dm-3
    • 58.5 g dm-3
    • 14.6 g dm-3
    • 29.3 g dm-3

  7. How many moles of sodium hydroxide are in 25.0 cm3 of 0.200 mol dm-3 NaOH solution?

    • 0.125 mol
    • 0.00500 mol
    • 0.00200 mol
    • 0.0500 mol

  8. 25.0 cm3 of 0.100 mol dm-3 HCl neutralises 20.0 cm3 of NaOH solution. What is the NaOH concentration?

    • 0.250 mol dm-3
    • 0.100 mol dm-3
    • 0.0800 mol dm-3
    • 0.125 mol dm-3

  9. 10 cm3 of hydrogen reacts with oxygen in 2H2 + O2 -> 2H2O. What volume of oxygen is needed at the same conditions?

    • 20 cm3
    • 10 cm3
    • 5 cm3
    • 2.5 cm3

  10. What volume of oxygen is needed to burn 50 cm3 of methane, CH4 + 2O2 -> CO2 + 2H2O?

    • 200 cm3
    • 100 cm3
    • 25 cm3
    • 50 cm3

  11. Which indicator changes from pink to colourless at the end point of a NaOH into HCl titration?

    • Phenolphthalein
    • Universal indicator
    • Methyl orange
    • Litmus

  12. What is the concentration of a solution made from 4.0 g of NaOH in 250 cm3? (NaOH = 40)

    • 0.40 mol dm-3
    • 0.10 mol dm-3
    • 1.0 mol dm-3
    • 4.0 mol dm-3

  13. How many moles of HCl are in 100 cm3 of 2.0 mol dm-3 hydrochloric acid?

    • 0.20 mol
    • 0.02 mol
    • 0.50 mol
    • 2.0 mol

  14. What volume of hydrogen forms at room temperature and pressure from 0.25 mol of zinc with excess acid?

    • 12 dm3
    • 3.0 dm3
    • 24 dm3
    • 6.0 dm3

  15. What volume of oxygen reacts with 30 cm³ of propane in C3H8 + 5O2 → 3CO2 + 4H2O?

    • 150 cm³
    • 1500 cm³
    • 30 cm³
    • 90 cm³

  16. A 0.200 mol dm-3 solution of Na2CO3 is made. How many moles of Na+ ions are in 50.0 cm3?

    • 0.200 mol
    • 0.0100 mol
    • 0.0200 mol
    • 0.0400 mol

  17. Why is a standard solution prepared in a volumetric flask?

    • Accurate fixed volume
    • Fast reaction rate
    • Easy boiling point
    • Variable volume control

  18. What volume of 0.100 mol dm-3 HCl is needed to neutralise 0.0050 mol of NaOH?

    • 5 cm3
    • 50 cm3
    • 500 cm3
    • 25 cm3

  19. Three concordant titres are 24.10, 24.00 and 24.05 cm3. What is the mean titre?

    • 24.10 cm3
    • 24.05 cm3
    • 24.00 cm3
    • 24.20 cm3

  20. Why are titrations repeated until concordant results are achieved?

    • Improve percentage yield
    • Increase reaction rate
    • Reduce systematic error
    • Reduce random error

All Pearson Edexcel Chemistry quizzes