O-LevelChemistryStoichiometry5070/11 · May/June 2012 · Q91 Mark

15.0 cm³ of 1.0mol/dm³ potassium hydroxide just neutralise 20.0 cm³ of a solution of nitric acid. What is the concentration of the acid?

A0.75mol/dm³

B1.0mol/dm³

C1.5 mol/dm³

D7.5mol/dm³

✓ Correct answer

A: 0.75mol/dm³

Oracle Prep sorts past-paper questions by topic, so you can drill Stoichiometry and see which topics are most likely to come up next.

Topic: Stoichiometry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2012 Paper 1 Variant 1, question 9.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Which gas burns in air to form only one product?

The diagram shows apparatus for measuring the volume of hydrogen given off when an excess of dilute hydrochloric acid…

When butanol, represented by C4HWOH, burns in air, carbon dioxide and water are formed. C4HWOH + XO2 → 4CO2 + yH2O Wh…

Which pair of gases could be removed from the atmosphere using calcium carbonate?

In which parts of a motor car do the reactions, shown in the equations, take place?

The diagrams show four monomers. How many of these monomers would react with the molecule below to form a polymer?