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ZIMSEC O-Level Chemistry

Molar gas volume

Molar gas volume in ZIMSEC O-Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic20 practice questions1 lesson
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Overview

Form 4 (competency matrix 8.19.2); the molar gas volume is taken as 24 dm³ at room temperature and pressure.

Learning objectives

What the syllabus expects you to be able to do.

  1. 7.1.5.5Explain the concept of molar gas volume (24 dm³ per mole at room temperature and pressure).
  2. 7.1.5.6Use the molar gas volume in calculations.

Lessons

  • Molar gas volume

    30 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Molar gas volume: sample question

1 mark

Calculate the volume, in dm³, occupied by 0.50 mol of nitrogen gas at r.t.p. (Molar gas volume = 24 dm³ at r.t.p.)

Answer in dm³.

Turn Molar gas volume into a strength.

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